diff --git a/certbot-ci/MANIFEST.in b/certbot-ci/MANIFEST.in
index 64d68999e..7be27c3dc 100644
--- a/certbot-ci/MANIFEST.in
+++ b/certbot-ci/MANIFEST.in
@@ -1,4 +1,3 @@
 recursive-include certbot_integration_tests/assets *
 include certbot_integration_tests/py.typed
 include snap_integration_tests/py.typed
-include windows_installer_integration_tests/py.typed
diff --git a/certbot-ci/windows_installer_integration_tests/__init__.py b/certbot-ci/windows_installer_integration_tests/__init__.py
deleted file mode 100644
index e69de29bb..000000000
diff --git a/certbot-ci/windows_installer_integration_tests/conftest.py b/certbot-ci/windows_installer_integration_tests/conftest.py
deleted file mode 100644
index c0917013d..000000000
--- a/certbot-ci/windows_installer_integration_tests/conftest.py
+++ /dev/null
@@ -1,38 +0,0 @@
-# type: ignore
-"""
-General conftest for pytest execution of all integration tests lying
-in the window_installer_integration tests package.
-As stated by pytest documentation, conftest module is used to set on
-for a directory a specific configuration using built-in pytest hooks.
-
-See https://docs.pytest.org/en/latest/reference.html#hook-reference
-"""
-
-import os
-
-ROOT_PATH = os.path.dirname(os.path.dirname(os.path.dirname(__file__)))
-
-
-def pytest_addoption(parser):
-    """
-    Standard pytest hook to add options to the pytest parser.
-    :param parser: current pytest parser that will be used on the CLI
-    """
-    parser.addoption('--installer-path',
-                     default=os.path.join(ROOT_PATH, 'windows-installer', 'build',
-                                          'nsis', 'certbot-beta-installer-win_amd64.exe'),
-                     help='set the path of the windows installer to use, default to '
-                          'CERTBOT_ROOT_PATH\\windows-installer\\build\\nsis\\certbot-beta-installer-win_amd64.exe')  # pylint: disable=line-too-long
-    parser.addoption('--allow-persistent-changes', action='store_true',
-                     help='needs to be set, and confirm that the test will make persistent changes on this machine')  # pylint: disable=line-too-long
-
-
-def pytest_configure(config):
-    """
-    Standard pytest hook used to add a configuration logic for each node of a pytest run.
-    :param config: the current pytest configuration
-    """
-    if not config.option.allow_persistent_changes:
-        raise RuntimeError('This integration test would install Certbot on your machine. '
-                           'Please run it again with the `--allow-persistent-changes` '
-                           'flag set to acknowledge.')
diff --git a/certbot-ci/windows_installer_integration_tests/py.typed b/certbot-ci/windows_installer_integration_tests/py.typed
deleted file mode 100644
index e69de29bb..000000000
diff --git a/certbot-ci/windows_installer_integration_tests/test_main.py b/certbot-ci/windows_installer_integration_tests/test_main.py
deleted file mode 100644
index 635335522..000000000
--- a/certbot-ci/windows_installer_integration_tests/test_main.py
+++ /dev/null
@@ -1,69 +0,0 @@
-"""Module executing integration tests for the windows installer."""
-import os
-import re
-import subprocess
-import time
-from typing import Any
-
-import pytest
-
-
-@pytest.mark.skipif(os.name != 'nt', reason='Windows installer tests must be run on Windows.')
-def test_it(request: pytest.FixtureRequest) -> None:
-    try:
-        subprocess.check_call(['certbot', '--version'])
-    except (subprocess.CalledProcessError, OSError):
-        pass
-    else:
-        raise AssertionError('Expect certbot to not be available in the PATH.')
-
-    try:
-        # Install certbot
-        subprocess.check_call([request.config.option.installer_path, '/S'])
-
-        # Assert certbot is installed and runnable
-        output = subprocess.check_output(['certbot', '--version'], universal_newlines=True)
-        assert re.match(r'^certbot \d+\.\d+\.\d+.*$',
-                        output), 'Flag --version does not output a version.'
-
-        # Assert renew task is installed and ready
-        output = _ps('(Get-ScheduledTask -TaskName "Certbot Renew Task").State',
-                     capture_stdout=True)
-        assert output.strip() == 'Ready'
-
-        # Assert renew task is working
-        now = time.time()
-        _ps('Start-ScheduledTask -TaskName "Certbot Renew Task"')
-
-        status = 'Running'
-        while status != 'Ready':
-            status = _ps('(Get-ScheduledTask -TaskName "Certbot Renew Task").State',
-                         capture_stdout=True).strip()
-            time.sleep(1)
-
-        log_path = os.path.join('C:\\', 'Certbot', 'log', 'letsencrypt.log')
-
-        modification_time = os.path.getmtime(log_path)
-        assert now < modification_time, 'Certbot log file has not been modified by the renew task.'
-
-        with open(log_path) as file_h:
-            data = file_h.read()
-        assert 'no renewal failures' in data, 'Renew task did not execute properly.'
-
-    finally:
-        # Sadly this command cannot work in non interactive mode: uninstaller will
-        # ask explicitly permission in an UAC prompt
-        # print('Uninstalling Certbot ...')
-        # uninstall_path = _ps('(gci "HKLM:\\SOFTWARE\\Wow6432Node\\Microsoft\\Windows\\CurrentVersion\\Uninstall"'  # pylint: disable=line-too-long
-        #                      ' | foreach { gp $_.PSPath }'
-        #                      ' | ? { $_ -match "Certbot" }'
-        #                      ' | select UninstallString)'
-        #                      '.UninstallString', capture_stdout=True)
-        # subprocess.check_call([uninstall_path, '/S'])
-        pass
-
-
-def _ps(powershell_str: str, capture_stdout: bool = False) -> Any:
-    fn = subprocess.check_output if capture_stdout else subprocess.check_call
-    return fn(['powershell.exe', '-c', powershell_str],  # type: ignore[operator]
-              universal_newlines=True)
diff --git a/certbot/certbot/_internal/renewal.py b/certbot/certbot/_internal/renewal.py
index 62e31f865..bad314538 100644
--- a/certbot/certbot/_internal/renewal.py
+++ b/certbot/certbot/_internal/renewal.py
@@ -568,8 +568,6 @@ def handle_renewal_request(config: configuration.NamespaceConfig) -> Tuple[list,
         raise errors.Error(
             f"{len(renew_failures)} renew failure(s), {len(parse_failures)} parse failure(s)")
 
-    # Windows installer integration tests rely on handle_renewal_request behavior here.
-    # If the text below changes, these tests will need to be updated accordingly.
     logger.debug("no renewal failures")
 
     return (renewed_domains, failed_domains)
diff --git a/certbot/docs/contributing.rst b/certbot/docs/contributing.rst
index 2af5f3016..cf2927656 100644
--- a/certbot/docs/contributing.rst
+++ b/certbot/docs/contributing.rst
@@ -238,8 +238,6 @@ certbot-apache and certbot-nginx
   client code to configure specific web servers
 certbot-dns-*
   client code to configure DNS providers
-windows installer
-  Installs Certbot on Windows and is built using the files in windows-installer/
 
 Plugin-architecture
 -------------------
@@ -587,8 +585,7 @@ Certbot's dependencies
 
 We attempt to pin all of Certbot's dependencies whenever we can for reliability
 and consistency. Some of the places we have Certbot's dependencies pinned
-include our snaps, Docker images, Windows installer, CI, and our development
-environments.
+include our snaps, Docker images, CI, and our development environments.
 
 In most cases, the file where dependency versions are specified is
 ``tools/requirements.txt``. The one exception to this is our "oldest" tests
diff --git a/tools/pinning/current/pyproject.toml b/tools/pinning/current/pyproject.toml
index ae7df57a9..9443d5b44 100644
--- a/tools/pinning/current/pyproject.toml
+++ b/tools/pinning/current/pyproject.toml
@@ -35,7 +35,6 @@ certbot-apache = {path = "../../../certbot-apache", extras = ["dev"]}
 certbot = {path = "../../../certbot", extras = ["all"]}
 acme = {path = "../../../acme", extras = ["docs", "test"]}
 letstest = {path = "../../../letstest"}
-windows-installer = {path = "../../../windows-installer"}
 
 # Extra dependencies
 # As of writing this, cython is a build dependency of pyyaml. Since there
diff --git a/tools/requirements.txt b/tools/requirements.txt
index 73e9061c4..48074d93a 100644
--- a/tools/requirements.txt
+++ b/tools/requirements.txt
@@ -15,8 +15,8 @@ azure-devops==7.1.0b4 ; python_version >= "3.9" and python_version < "4.0"
 babel==2.16.0 ; python_version >= "3.9" and python_version < "4.0"
 bcrypt==4.2.1 ; python_version >= "3.9" and python_version < "4.0"
 beautifulsoup4==4.12.3 ; python_version >= "3.9" and python_version < "4.0"
-boto3==1.35.78 ; python_version >= "3.9" and python_version < "4.0"
-botocore==1.35.78 ; python_version >= "3.9" and python_version < "4.0"
+boto3==1.35.79 ; python_version >= "3.9" and python_version < "4.0"
+botocore==1.35.79 ; python_version >= "3.9" and python_version < "4.0"
 build==1.2.2.post1 ; python_version >= "3.9" and python_version < "4.0"
 cachecontrol==0.14.1 ; python_version >= "3.9" and python_version < "4.0"
 cachetools==5.5.0 ; python_version >= "3.9" and python_version < "4.0"
@@ -49,9 +49,9 @@ fabric==3.2.2 ; python_version >= "3.9" and python_version < "4.0"
 fastjsonschema==2.21.1 ; python_version >= "3.9" and python_version < "4.0"
 filelock==3.16.1 ; python_version >= "3.9" and python_version < "4.0"
 google-api-core==2.24.0 ; python_version >= "3.9" and python_version < "4.0"
-google-api-python-client==2.154.0 ; python_version >= "3.9" and python_version < "4.0"
+google-api-python-client==2.155.0 ; python_version >= "3.9" and python_version < "4.0"
 google-auth-httplib2==0.2.0 ; python_version >= "3.9" and python_version < "4.0"
-google-auth==2.36.0 ; python_version >= "3.9" and python_version < "4.0"
+google-auth==2.37.0 ; python_version >= "3.9" and python_version < "4.0"
 googleapis-common-protos==1.66.0 ; python_version >= "3.9" and python_version < "4.0"
 httplib2==0.22.0 ; python_version >= "3.9" and python_version < "4.0"
 idna==3.10 ; python_version >= "3.9" and python_version < "4.0"
@@ -109,7 +109,6 @@ pycparser==2.22 ; python_version >= "3.9" and python_version < "4.0"
 pygments==2.18.0 ; python_version >= "3.9" and python_version < "4.0"
 pylint==3.0.2 ; python_version >= "3.9" and python_version < "4.0"
 pynacl==1.5.0 ; python_version >= "3.9" and python_version < "4.0"
-pynsist==2.7 ; python_version >= "3.9" and python_version < "4.0"
 pyopenssl==24.3.0 ; python_version >= "3.9" and python_version < "4.0"
 pyotp==2.9.0 ; python_version >= "3.9" and python_version < "4.0"
 pyparsing==3.2.0 ; python_version >= "3.9" and python_version < "4.0"
@@ -128,7 +127,6 @@ pywin32==308 ; python_version >= "3.9" and python_version < "4.0" and sys_platfo
 pyyaml==6.0.2 ; python_version >= "3.9" and python_version < "4.0"
 rapidfuzz==3.10.1 ; python_version >= "3.9" and python_version < "4.0"
 readme-renderer==44.0 ; python_version >= "3.9" and python_version < "4.0"
-requests-download==0.1.2 ; python_version >= "3.9" and python_version < "4.0"
 requests-file==2.1.0 ; python_version >= "3.9" and python_version < "4.0"
 requests-oauthlib==2.0.0 ; python_version >= "3.9" and python_version < "4.0"
 requests-toolbelt==1.0.0 ; python_version >= "3.9" and python_version < "4.0"
@@ -180,5 +178,4 @@ wcwidth==0.2.13 ; python_version >= "3.9" and python_version < "4.0"
 wheel==0.45.1 ; python_version >= "3.9" and python_version < "4.0"
 wrapt==1.17.0 ; python_version >= "3.9" and python_version < "4.0"
 xattr==1.1.0 ; python_version >= "3.9" and python_version < "4.0" and sys_platform == "darwin"
-yarg==0.1.10 ; python_version >= "3.9" and python_version < "4.0"
 zipp==3.21.0 ; python_version >= "3.9" and python_version < "3.12"
diff --git a/tools/venv.py b/tools/venv.py
index 4044258ef..d8165f089 100755
--- a/tools/venv.py
+++ b/tools/venv.py
@@ -46,7 +46,6 @@ REQUIREMENTS = [
 ]
 
 if sys.platform == 'win32':
-    REQUIREMENTS.append('-e windows-installer')
     REQUIREMENTS.remove('-e certbot-apache')
     REQUIREMENTS.remove('-e certbot-compatibility-test')
 
diff --git a/windows-installer/.gitignore b/windows-installer/.gitignore
deleted file mode 100644
index a1a48d6b8..000000000
--- a/windows-installer/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-build
-build.*
diff --git a/windows-installer/assets/certbot.ico b/windows-installer/assets/certbot.ico
deleted file mode 100644
index 364c32098..000000000
Binary files a/windows-installer/assets/certbot.ico and /dev/null differ
diff --git a/windows-installer/assets/preamble.py b/windows-installer/assets/preamble.py
deleted file mode 100644
index fea8e9fd8..000000000
--- a/windows-installer/assets/preamble.py
+++ /dev/null
@@ -1,12 +0,0 @@
-"""Pynsist extra_preamble for the Certbot entry point.
-
-This preamble ensures that Certbot on Windows always runs with the --preconfigured-renewal
-flag set. Since Pynsist creates a Scheduled Task for renewal, we want this flag to be set
-so that we can provide the right automated renewal advice to Certbot on Windows users.
-
-"""
-
-
-import sys
-
-sys.argv += ["--preconfigured-renewal"]
diff --git a/windows-installer/assets/renew-down.ps1 b/windows-installer/assets/renew-down.ps1
deleted file mode 100644
index 60dc4d9e6..000000000
--- a/windows-installer/assets/renew-down.ps1
+++ /dev/null
@@ -1,6 +0,0 @@
-$taskName = "Certbot Renew Task"
-
-$exists = Get-ScheduledTask | Where-Object {$_.TaskName -like $taskName}
-if ($exists) {
-    Unregister-ScheduledTask -TaskName $taskName -Confirm:$false
-}
diff --git a/windows-installer/assets/renew-up.ps1 b/windows-installer/assets/renew-up.ps1
deleted file mode 100644
index 224458748..000000000
--- a/windows-installer/assets/renew-up.ps1
+++ /dev/null
@@ -1,17 +0,0 @@
-function Get-ScriptDirectory { Split-Path $MyInvocation.ScriptName }
-$down = Join-Path (Get-ScriptDirectory) 'renew-down.ps1'
-& $down
-
-$taskName = "Certbot Renew Task"
-
-$action = New-ScheduledTaskAction -Execute 'Powershell.exe' -Argument '-NoProfile -WindowStyle Hidden -Command "certbot renew"'
-$delay = New-TimeSpan -Hours 12
-$triggerAM = New-ScheduledTaskTrigger -Daily -At 12am -RandomDelay $delay
-$triggerPM = New-ScheduledTaskTrigger -Daily -At 12pm -RandomDelay $delay
-# NB: For now scheduled task is set up under Administrators group account because Certbot Installer installs Certbot for all users.
-# If in the future we allow the Installer to install Certbot for one specific user, the scheduled task will need to
-# switch to this user, since Certbot will be available only for him.
-$adminsSID = New-Object System.Security.Principal.SecurityIdentifier("S-1-5-32-544")
-$adminsGroupID = $adminsSID.Translate([System.Security.Principal.NTAccount]).Value
-$principal = New-ScheduledTaskPrincipal -GroupId $adminsGroupID -RunLevel Highest
-Register-ScheduledTask -Action $action -Trigger $triggerAM,$triggerPM -TaskName $taskName -Description "Execute twice a day the 'certbot renew' command, to renew managed certificates if needed." -Principal $principal
diff --git a/windows-installer/assets/run.bat b/windows-installer/assets/run.bat
deleted file mode 100644
index efba28800..000000000
--- a/windows-installer/assets/run.bat
+++ /dev/null
@@ -1,31 +0,0 @@
-@echo off
-
-:: BatchGotAdmin
-:-------------------------------------
-REM  --> Check for permissions
-    IF "%PROCESSOR_ARCHITECTURE%" EQU "amd64" (
->nul 2>&1 "%SYSTEMROOT%\SysWOW64\cacls.exe" "%SYSTEMROOT%\SysWOW64\config\system"
-) ELSE (
->nul 2>&1 "%SYSTEMROOT%\system32\cacls.exe" "%SYSTEMROOT%\system32\config\system"
-)
-
-REM --> If error flag set, we do not have admin.
-if '%errorlevel%' NEQ '0' (
-    echo Requesting administrative privileges...
-    goto UACPrompt
-) else ( goto gotAdmin )
-
-:UACPrompt
-    echo Set UAC = CreateObject^("Shell.Application"^) > "%temp%\getadmin.vbs"
-    set params= %*
-    echo UAC.ShellExecute "cmd.exe", "/c ""%~s0"" %params:"=""%", "", "runas", 1 >> "%temp%\getadmin.vbs"
-
-    "%temp%\getadmin.vbs"
-    del "%temp%\getadmin.vbs"
-    exit /B
-
-:gotAdmin
-    pushd "%CD%"
-    CD /D "%~dp0"
-:--------------------------------------    
-cmd.exe /k echo You can run 'certbot' commands here. Type 'certbot --help' for more information.
diff --git a/windows-installer/assets/template.nsi b/windows-installer/assets/template.nsi
deleted file mode 100644
index 5c551729a..000000000
--- a/windows-installer/assets/template.nsi
+++ /dev/null
@@ -1,285 +0,0 @@
-; This NSIS template is based on the built-in one in pynsist 2.7.
-; Added lines are enclosed within "CERTBOT CUSTOM BEGIN/END" comments.
-; If pynsist is upgraded, this template must be updated if necessary using the new built-in one.
-; Original file can be found here: https://github.com/takluyver/pynsist/blob/2.7/nsist/pyapp.nsi
-
-!define PRODUCT_NAME "[[ib.appname]]"
-!define PRODUCT_VERSION "[[ib.version]]"
-!define PY_VERSION "[[ib.py_version]]"
-!define PY_MAJOR_VERSION "[[ib.py_major_version]]"
-!define BITNESS "[[ib.py_bitness]]"
-!define ARCH_TAG "[[arch_tag]]"
-!define INSTALLER_NAME "[[ib.installer_name]]"
-!define PRODUCT_ICON "[[icon]]"
-
-; Marker file to tell the uninstaller that it's a user installation
-!define USER_INSTALL_MARKER _user_install_marker
-
-SetCompressor lzma
-
-!if "${NSIS_PACKEDVERSION}" >= 0x03000000
-  Unicode true
-  ManifestDPIAware true
-!endif
-
-; CERTBOT CUSTOM BEGIN
-; Administrator privileges are required to insert a new task in Windows Scheduler.
-; Also comment out some options to disable ability to choose AllUsers/CurrentUser install mode.
-; As a result, installer run always with admin privileges (because of MULTIUSER_EXECUTIONLEVEL),
-; using the AllUsers installation mode by default (because of MULTIUSER_INSTALLMODE_DEFAULT_CURRENTUSER
-; not set), and this default behavior cannot be overridden (because of MULTIUSER_MUI not set).
-; See https://nsis.sourceforge.io/Docs/MultiUser/Readme.html
-!define MULTIUSER_EXECUTIONLEVEL Admin
-;!define MULTIUSER_EXECUTIONLEVEL Highest
-;!define MULTIUSER_INSTALLMODE_DEFAULT_CURRENTUSER
-;!define MULTIUSER_MUI
-;!define MULTIUSER_INSTALLMODE_COMMANDLINE
-; CERTBOT CUSTOM END
-!define MULTIUSER_INSTALLMODE_INSTDIR "[[ib.appname]]"
-[% if ib.py_bitness == 64 %]
-!define MULTIUSER_INSTALLMODE_FUNCTION correct_prog_files
-[% endif %]
-!include MultiUser.nsh
-!include FileFunc.nsh
-
-[% block modernui %]
-; Modern UI installer stuff
-!include "MUI2.nsh"
-!define MUI_ABORTWARNING
-!define MUI_ICON "[[icon]]"
-!define MUI_UNICON "[[icon]]"
-
-; UI pages
-[% block ui_pages %]
-!insertmacro MUI_PAGE_WELCOME
-[% if license_file %]
-!insertmacro MUI_PAGE_LICENSE [[license_file]]
-[% endif %]
-; CERTBOT CUSTOM BEGIN
-; Disable the installation mode page (AllUsers/CurrentUser)
-;!insertmacro MULTIUSER_PAGE_INSTALLMODE
-; CERTBOT CUSTOM END
-!insertmacro MUI_PAGE_DIRECTORY
-!insertmacro MUI_PAGE_INSTFILES
-!insertmacro MUI_PAGE_FINISH
-[% endblock ui_pages %]
-!insertmacro MUI_LANGUAGE "English"
-[% endblock modernui %]
-
-; CERTBOT CUSTOM BEGIN
-Name "${PRODUCT_NAME} (beta) ${PRODUCT_VERSION}"
-;Name "${PRODUCT_NAME} ${PRODUCT_VERSION}"
-; CERTBOT CUSTOM END
-OutFile "${INSTALLER_NAME}"
-ShowInstDetails show
-
-Var cmdLineInstallDir
-
-Section -SETTINGS
-  SetOutPath "$INSTDIR"
-  SetOverwrite ifnewer
-SectionEnd
-
-[% block sections %]
-
-Section "!${PRODUCT_NAME}" sec_app
-  ; CERTBOT CUSTOM BEGIN
-  ; Try to cleanup Certbot pkg directory to avoid dependencies conflicts
-  RMDir /r "$INSTDIR\pkgs"
-  ; CERTBOT CUSTOM END
-
-  SetRegView [[ib.py_bitness]]
-  SectionIn RO
-  File ${PRODUCT_ICON}
-  SetOutPath "$INSTDIR\pkgs"
-  File /r "pkgs\*.*"
-  SetOutPath "$INSTDIR"
-
-  ; Marker file for per-user install
-  StrCmp $MultiUser.InstallMode CurrentUser 0 +3
-    FileOpen $0 "$INSTDIR\${USER_INSTALL_MARKER}" w
-    FileClose $0
-    SetFileAttributes "$INSTDIR\${USER_INSTALL_MARKER}" HIDDEN
-
-  [% block install_files %]
-  ; Install files
-  [% for destination, group in grouped_files %]
-    SetOutPath "[[destination]]"
-    [% for file in group %]
-      File "[[ file ]]"
-    [% endfor %]
-  [% endfor %]
-
-  ; Install directories
-  [% for dir, destination in ib.install_dirs %]
-    SetOutPath "[[ pjoin(destination, dir) ]]"
-    File /r "[[dir]]\*.*"
-  [% endfor %]
-  [% endblock install_files %]
-
-  [% block install_shortcuts %]
-  ; Install shortcuts
-  ; The output path becomes the working directory for shortcuts
-  SetOutPath "%HOMEDRIVE%\%HOMEPATH%"
-  [% if single_shortcut %]
-    [% for scname, sc in ib.shortcuts.items() %]
-    CreateShortCut "$SMPROGRAMS\[[scname]].lnk" "[[sc['target'] ]]" \
-      '[[ sc['parameters'] ]]' "$INSTDIR\[[ sc['icon'] ]]"
-    [% endfor %]
-  [% else %]
-    [# Multiple shortcuts: create a directory for them #]
-    CreateDirectory "$SMPROGRAMS\${PRODUCT_NAME}"
-    [% for scname, sc in ib.shortcuts.items() %]
-    CreateShortCut "$SMPROGRAMS\${PRODUCT_NAME}\[[scname]].lnk" "[[sc['target'] ]]" \
-      '[[ sc['parameters'] ]]' "$INSTDIR\[[ sc['icon'] ]]"
-    [% endfor %]
-  [% endif %]
-  SetOutPath "$INSTDIR"
-  [% endblock install_shortcuts %]
-
-  [% block install_commands %]
-  [% if has_commands %]
-    DetailPrint "Setting up command-line launchers..."
-
-    StrCmp $MultiUser.InstallMode CurrentUser 0 AddSysPathSystem
-      ; Add to PATH for current user
-      nsExec::ExecToLog '[[ python ]] -Es "$INSTDIR\_system_path.py" add_user "$INSTDIR\bin"'
-      GoTo AddedSysPath
-    AddSysPathSystem:
-      ; Add to PATH for all users
-      nsExec::ExecToLog '[[ python ]] -Es "$INSTDIR\_system_path.py" add "$INSTDIR\bin"'
-    AddedSysPath:
-  [% endif %]
-  [% endblock install_commands %]
-
-  ; Byte-compile Python files.
-  DetailPrint "Byte-compiling Python modules..."
-  nsExec::ExecToLog '[[ python ]] -m compileall -q "$INSTDIR\pkgs"'
-  WriteUninstaller $INSTDIR\uninstall.exe
-  ; Add ourselves to Add/remove programs
-  WriteRegStr SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}" \
-                   "DisplayName" "${PRODUCT_NAME}"
-  WriteRegStr SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}" \
-                   "UninstallString" '"$INSTDIR\uninstall.exe"'
-  WriteRegStr SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}" \
-                   "InstallLocation" "$INSTDIR"
-  WriteRegStr SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}" \
-                   "DisplayIcon" "$INSTDIR\${PRODUCT_ICON}"
-  [% if ib.publisher is not none %]
-    WriteRegStr SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}" \
-                     "Publisher" "[[ib.publisher]]"
-  [% endif %]
-  WriteRegStr SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}" \
-                   "DisplayVersion" "${PRODUCT_VERSION}"
-  WriteRegDWORD SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}" \
-                   "NoModify" 1
-  WriteRegDWORD SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}" \
-                   "NoRepair" 1
-
-  ; CERTBOT CUSTOM BEGIN
-  ; Execute ps script to create the certbot renew task
-  DetailPrint "Setting up certbot renew scheduled task"
-  nsExec::ExecToStack 'powershell -inputformat none -ExecutionPolicy RemoteSigned -File "$INSTDIR\renew-up.ps1"'
-  ; CERTBOT CUSTOM END
-
-  ; Check if we need to reboot
-  IfRebootFlag 0 noreboot
-    MessageBox MB_YESNO "A reboot is required to finish the installation. Do you wish to reboot now?" \
-                /SD IDNO IDNO noreboot
-      Reboot
-  noreboot:
-SectionEnd
-
-Section "Uninstall"
-  ; CERTBOT CUSTOM BEGIN
-  ; Execute ps script to remove the certbot renew task
-  nsExec::ExecToStack 'powershell -inputformat none -ExecutionPolicy RemoteSigned -File "$INSTDIR\renew-down.ps1"'
-  ; CERTBOT CUSTOM END
-
-  SetRegView [[ib.py_bitness]]
-  SetShellVarContext all
-  IfFileExists "$INSTDIR\${USER_INSTALL_MARKER}" 0 +3
-    SetShellVarContext current
-    Delete "$INSTDIR\${USER_INSTALL_MARKER}"
-
-  Delete $INSTDIR\uninstall.exe
-  Delete "$INSTDIR\${PRODUCT_ICON}"
-  RMDir /r "$INSTDIR\pkgs"
-
-  ; Remove ourselves from %PATH%
-  [% block uninstall_commands %]
-  [% if has_commands %]
-    nsExec::ExecToLog '[[ python ]] -Es "$INSTDIR\_system_path.py" remove "$INSTDIR\bin"'
-  [% endif %]
-  [% endblock uninstall_commands %]
-
-  [% block uninstall_files %]
-  ; Uninstall files
-  [% for file, destination in ib.install_files %]
-    Delete "[[pjoin(destination, file)]]"
-  [% endfor %]
-  ; Uninstall directories
-  [% for dir, destination in ib.install_dirs %]
-    RMDir /r "[[pjoin(destination, dir)]]"
-  [% endfor %]
-  [% endblock uninstall_files %]
-
-  [% block uninstall_shortcuts %]
-  ; Uninstall shortcuts
-  [% if single_shortcut %]
-    [% for scname in ib.shortcuts %]
-      Delete "$SMPROGRAMS\[[scname]].lnk"
-    [% endfor %]
-  [% else %]
-    RMDir /r "$SMPROGRAMS\${PRODUCT_NAME}"
-  [% endif %]
-  [% endblock uninstall_shortcuts %]
-  RMDir $INSTDIR
-  DeleteRegKey SHCTX "Software\Microsoft\Windows\CurrentVersion\Uninstall\${PRODUCT_NAME}"
-SectionEnd
-
-[% endblock sections %]
-
-; Functions
-
-Function .onMouseOverSection
-    ; Find which section the mouse is over, and set the corresponding description.
-    FindWindow $R0 "#32770" "" $HWNDPARENT
-    GetDlgItem $R0 $R0 1043 ; description item (must be added to the UI)
-
-    [% block mouseover_messages %]
-    StrCmp $0 ${sec_app} "" +2
-      SendMessage $R0 ${WM_SETTEXT} 0 "STR:${PRODUCT_NAME}"
-
-    [% endblock mouseover_messages %]
-FunctionEnd
-
-Function .onInit
-  ; Multiuser.nsh breaks /D command line parameter. Parse /INSTDIR instead.
-  ; Cribbing from https://nsis-dev.github.io/NSIS-Forums/html/t-299280.html
-  ${GetParameters} $0
-  ClearErrors
-  ${GetOptions} '$0' "/INSTDIR=" $1
-  IfErrors +2  ; Error means flag not found
-    StrCpy $cmdLineInstallDir $1
-  ClearErrors
-
-  !insertmacro MULTIUSER_INIT
-
-  ; If cmd line included /INSTDIR, override the install dir set by MultiUser
-  StrCmp $cmdLineInstallDir "" +2
-    StrCpy $INSTDIR $cmdLineInstallDir
-FunctionEnd
-
-Function un.onInit
-  !insertmacro MULTIUSER_UNINIT
-FunctionEnd
-
-[% if ib.py_bitness == 64 %]
-Function correct_prog_files
-  ; The multiuser machinery doesn't know about the different Program files
-  ; folder for 64-bit applications. Override the install dir it set.
-  StrCmp $MultiUser.InstallMode AllUsers 0 +2
-    StrCpy $INSTDIR "$PROGRAMFILES64\${MULTIUSER_INSTALLMODE_INSTDIR}"
-FunctionEnd
-[% endif %]
diff --git a/windows-installer/setup.py b/windows-installer/setup.py
deleted file mode 100644
index 62d8e4323..000000000
--- a/windows-installer/setup.py
+++ /dev/null
@@ -1,45 +0,0 @@
-from setuptools import find_packages
-from setuptools import setup
-
-version = '1.0'
-
-setup(
-    name='windows-installer',
-    version=version,
-    description='Environment to build the Certbot Windows installer',
-    url='https://github.com/certbot/certbot',
-    author="Certbot Project",
-    author_email='certbot-dev@eff.org',
-    license='Apache License 2.0',
-    python_requires='>=3.9',
-    classifiers=[
-        'Development Status :: 4 - Beta',
-        'Intended Audience :: Developers',
-        'License :: OSI Approved :: Apache Software License',
-        'Programming Language :: Python',
-        'Programming Language :: Python :: 3',
-        'Programming Language :: Python :: 3.9',
-        'Programming Language :: Python :: 3.10',
-        'Programming Language :: Python :: 3.11',
-        'Programming Language :: Python :: 3.12',
-        'Operating System :: Microsoft :: Windows',
-        'Topic :: Software Development :: Build Tools',
-    ],
-
-    packages=find_packages(),
-    include_package_data=True,
-    install_requires=[
-        # pynsist is pinned to an exact version so we can update
-        # assets/template.nsi as needed. The file is based on the default
-        # pynsist NSIS template and pynsist's documentation warns that custom
-        # templates may need to be updated for them to work with new versions
-        # of pynsist. See
-        # https://pynsist.readthedocs.io/en/latest/cfgfile.html#build-section.
-        'pynsist==2.7'
-    ],
-    entry_points={
-        'console_scripts': [
-            'construct-windows-installer = windows_installer.construct:main',
-        ],
-    },
-)
diff --git a/windows-installer/windows_installer/__init__.py b/windows-installer/windows_installer/__init__.py
deleted file mode 100644
index e69de29bb..000000000
diff --git a/windows-installer/windows_installer/construct.py b/windows-installer/windows_installer/construct.py
deleted file mode 100644
index 0948b4cfe..000000000
--- a/windows-installer/windows_installer/construct.py
+++ /dev/null
@@ -1,151 +0,0 @@
-#!/usr/bin/env python3
-import ctypes
-import os
-import shutil
-import struct
-import subprocess
-import sys
-import time
-
-PYTHON_VERSION = (3, 9, 11)
-PYTHON_BITNESS = 64
-NSIS_VERSION = '3.06.1'
-
-
-def main():
-    if os.name != 'nt':
-        raise RuntimeError('This script must be run under Windows.')
-
-    if ctypes.windll.shell32.IsUserAnAdmin() == 0:
-        # Administrator privileges are required to properly install NSIS through Chocolatey
-        raise RuntimeError('This script must be run with administrator privileges.')
-
-    if sys.version_info[:2] != PYTHON_VERSION[:2]:
-        raise RuntimeError('This script must be run with Python {0}'
-                           .format('.'.join(str(item) for item in PYTHON_VERSION[0:2])))
-
-    if struct.calcsize('P') * 8 != PYTHON_BITNESS:
-        raise RuntimeError('This script must be run with a {0} bit version of Python.'
-                           .format(PYTHON_BITNESS))
-
-    build_path, repo_path, venv_path, venv_python = _prepare_environment()
-
-    _copy_assets(build_path, repo_path)
-
-    installer_cfg_path = _generate_pynsist_config(repo_path, build_path)
-
-    _prepare_build_tools(venv_path, venv_python, repo_path)
-    _compile_wheels(repo_path, build_path, venv_python)
-    _build_installer(installer_cfg_path)
-
-    print('Done')
-
-
-def _build_installer(installer_cfg_path):
-    print('Build the installer')
-    subprocess.check_call([sys.executable, '-m', 'nsist', installer_cfg_path])
-
-
-def _compile_wheels(repo_path, build_path, venv_python):
-    print('Compile wheels')
-
-    wheels_path = os.path.join(build_path, 'wheels')
-    os.makedirs(wheels_path)
-
-    certbot_packages = ['acme', 'certbot']
-    # Uncomment following line to include all DNS plugins in the installer
-    # certbot_packages.extend([name for name in os.listdir(repo_path) if name.startswith('certbot-dns-')])
-    wheels_project = [os.path.join(repo_path, package) for package in certbot_packages]
-
-    constraints_file_path = os.path.join(repo_path, 'tools', 'requirements.txt')
-    env = os.environ.copy()
-    env['PIP_CONSTRAINT'] = constraints_file_path
-    command = [venv_python, '-m', 'pip', 'wheel', '-w', wheels_path]
-    command.extend(wheels_project)
-    subprocess.check_call(command, env=env)
-
-
-def _prepare_build_tools(venv_path, venv_python, repo_path):
-    print('Prepare build tools')
-    subprocess.check_call([sys.executable, '-m', 'venv', venv_path])
-    subprocess.check_call([venv_python, os.path.join(repo_path, 'tools', 'pipstrap.py')])
-    subprocess.check_call(['choco', 'upgrade', '--allow-downgrade', '-y', 'nsis', '--version', NSIS_VERSION])
-
-
-def _copy_assets(build_path, repo_path):
-    print('Copy assets')
-    if os.path.exists(build_path):
-        os.rename(build_path, '{0}.{1}.bak'.format(build_path, int(time.time())))
-    os.makedirs(build_path)
-    shutil.copy(os.path.join(repo_path, 'windows-installer', 'assets', 'certbot.ico'), build_path)
-    shutil.copy(os.path.join(repo_path, 'windows-installer', 'assets', 'run.bat'), build_path)
-    shutil.copy(os.path.join(repo_path, 'windows-installer', 'assets', 'template.nsi'), build_path)
-    shutil.copy(os.path.join(repo_path, 'windows-installer', 'assets', 'renew-up.ps1'), build_path)
-    shutil.copy(os.path.join(repo_path, 'windows-installer', 'assets', 'renew-down.ps1'), build_path)
-    shutil.copy(os.path.join(repo_path, 'windows-installer', 'assets', 'preamble.py'), build_path)
-
-
-def _generate_pynsist_config(repo_path, build_path):
-    print('Generate pynsist configuration')
-
-    installer_cfg_path = os.path.join(build_path, 'installer.cfg')
-
-    certbot_pkg_path = os.path.join(repo_path, 'certbot')
-    certbot_version = subprocess.check_output([sys.executable, '-c', 'import certbot; print(certbot.__version__)'],
-                                              universal_newlines=True, cwd=certbot_pkg_path).strip()
-
-    # If we change the installer name from `certbot-beta-installer-win_amd64.exe`, it should
-    # also be changed in tools/create_github_release.py
-    with open(installer_cfg_path, 'w') as file_h:
-        file_h.write('''\
-[Application]
-name=Certbot
-version={certbot_version}
-icon=certbot.ico
-publisher=Electronic Frontier Foundation
-target=$INSTDIR\\run.bat
-
-[Build]
-directory=nsis
-nsi_template=template.nsi
-installer_name=certbot-beta-installer-{installer_suffix}.exe
-
-[Python]
-version={python_version}
-bitness={python_bitness}
-
-[Include]
-local_wheels=wheels\\*.whl
-files=run.bat
-      renew-up.ps1
-      renew-down.ps1
-
-[Command certbot]
-entry_point=certbot.main:main
-extra_preamble=preamble.py
-'''.format(certbot_version=certbot_version,
-           installer_suffix='win_amd64' if PYTHON_BITNESS == 64 else 'win32',
-           python_bitness=PYTHON_BITNESS,
-           python_version='.'.join(str(item) for item in PYTHON_VERSION)))
-
-        return installer_cfg_path
-
-
-def _prepare_environment():
-    print('Prepare environment')
-    try:
-        subprocess.check_output(['choco', '--version'])
-    except subprocess.CalledProcessError:
-        raise RuntimeError('Error: Chocolatey (https://chocolatey.org/) needs '
-                           'to be installed to run this script.')
-    script_path = os.path.realpath(__file__)
-    repo_path = os.path.dirname(os.path.dirname(os.path.dirname(script_path)))
-    build_path = os.path.join(repo_path, 'windows-installer', 'build')
-    venv_path = os.path.join(build_path, 'venv-config')
-    venv_python = os.path.join(venv_path, 'Scripts', 'python.exe')
-
-    return build_path, repo_path, venv_path, venv_python
-
-
-if __name__ == '__main__':
-    main()