diff --git a/.buildkite/pipeline-windows-tests.yml b/.buildkite/pipeline-windows-tests.yml
index 47e08f95..986a0a27 100644
--- a/.buildkite/pipeline-windows-tests.yml
+++ b/.buildkite/pipeline-windows-tests.yml
@@ -109,11 +109,3 @@ steps:
         notify:
           - github_commit_status:
               context: "install_python Tests - Basic dry run with Chocolatey available"
-
-  - label: ":windows: prepare_windows_host_for_app_distribution Tests - Skip Windows 10 SDK Installation"
-    command: .\tests\test_prepare_windows_host_for_app_distribution.ps1
-    agents:
-      queue: windows
-    notify:
-      - github_commit_status:
-          context: "prepare_windows_host_for_app_distribution Tests - Skip Windows 10 SDK Installation"
diff --git a/CHANGELOG.md b/CHANGELOG.md
index 77c6dd6a..56b11ea6 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -34,7 +34,7 @@ _None._
 
 ### Breaking Changes
 
-_None._
+- Removed the `prepare_windows_host_for_app_distribution.ps1` script, given what it was installing is now already pre-provisioned in our custom Windows AMI. [#196]
 
 ### New Features
 
diff --git a/bin/prepare_windows_host_for_app_distribution.ps1 b/bin/prepare_windows_host_for_app_distribution.ps1
deleted file mode 100755
index d9fa27a5..00000000
--- a/bin/prepare_windows_host_for_app_distribution.ps1
+++ /dev/null
@@ -1,157 +0,0 @@
-# Prepares a `windows` CI agent with all the necessary setup so it can build and distribute a windows app
-#
-#  - Enables long path behavior
-#  - Disable Windows Defender on the CI agent
-#  - Install the "Chocolatey" package manager
-#  - Install Python (required for Node.js native module compilation)(1)
-#  - Enable dev mode so the agent can support Linux-style symlinks
-#  - Download Code Signing Certificates(2)
-#  - Install the Windows 10 SDK if it detected a `.windows-10-sdk-version` file(3)
-#  - Optionally install native compilation tools (MSVC compiler and CMake)(4)
-#
-# (1) Python is NOT installed by default. You can install Python by calling the script with `-InstallPython`.
-# (2) The certificate it installs is stored in our AWS SecretsManager storage (`windows-code-signing-certificate` secret ID)
-# (3) You can skip the Windows 10 SDK installation regardless of whether `.windows-10-sdk-version` is present by calling the script with `-SkipWindows10SDKInstallation`.
-# (4) Native compilation tools are NOT installed by default. You can install them by calling the script with `-InstallNativeCompilationTools`. This requires the Windows 10 SDK installation to NOT be skipped, as those are installed in tandem.
-# (5) Certificate download can be skipped by setting environment variable `SKIP_CERTIFICATE_DOWNLOAD=true` (useful for testing).
-#
-# Note: In addition to calling this script, and depending on your client app, you might want to also install `npm` and the `Node.js` packages used by your client app on the agent too. For that part, you should use the `automattic/nvm` Buildkite plugin on the pipeline step's `plugins:` attribute.
-#
-
-param (
-  [switch]$SkipWindows10SDKInstallation = $false,
-  [switch]$InstallPython = $false,
-  [switch]$InstallNativeCompilationTools = $false
-)
-
-# Stop script execution when a non-terminating error occurs
-$ErrorActionPreference = "Stop"
-
-$amiVersion = [Environment]::GetEnvironmentVariable('AMI_VERSION', 'Machine')
-Write-Output "AMI_VERSION is: $amiVersion"
-if (![string]::IsNullOrWhiteSpace($amiVersion) -and [version]$amiVersion -ge [version]'0.2') {
-  Write-Output "Tooling is already pre-installed in AMI versions >= 0.2. Only installing code signing certificate."
-  & "setup_windows_code_signing.ps1"
-  Exit 0
-}
-
-# Validate parameter combinations
-if ($InstallNativeCompilationTools -and $SkipWindows10SDKInstallation) {
-    Write-Output "[!] Invalid parameter combination: -InstallNativeCompilationTools cannot be used with -SkipWindows10SDKInstallation."
-    Write-Output "    Native compilation tools require Windows 10 SDK to be installed."
-    Exit 1
-}
-
-Write-Output "--- :windows: Setting up Windows for app distribution"
-
-Write-Output "Current working directory: $PWD"
-
-Write-Output "Enable long path behavior"
-# See https://docs.microsoft.com/en-us/windows/desktop/fileio/naming-a-file#maximum-path-length-limitation
-Set-ItemProperty -Path 'HKLM:\SYSTEM\CurrentControlSet\Control\FileSystem' -Name 'LongPathsEnabled' -Value 1
-
-# Disable Windows Defender before starting – otherwise our performance is terrible
-Write-Output "Disable Windows Defender..."
-$avPreference = @(
-  @{DisableArchiveScanning = $true}
-  @{DisableAutoExclusions = $true}
-  @{DisableBehaviorMonitoring = $true}
-  @{DisableBlockAtFirstSeen = $true}
-  @{DisableCatchupFullScan = $true}
-  @{DisableCatchupQuickScan = $true}
-  @{DisableIntrusionPreventionSystem = $true}
-  @{DisableIOAVProtection = $true}
-  @{DisablePrivacyMode = $true}
-  @{DisableScanningNetworkFiles = $true}
-  @{DisableScriptScanning = $true}
-  @{MAPSReporting = 0}
-  @{PUAProtection = 0}
-  @{SignatureDisableUpdateOnStartupWithoutEngine = $true}
-  @{SubmitSamplesConsent = 2}
-  @{ScanAvgCPULoadFactor = 5; ExclusionPath = @("D:\", "C:\")}
-  @{DisableRealtimeMonitoring = $true}
-  @{ScanScheduleDay = 8}
-)
-
-$avPreference += @(
-  @{EnableControlledFolderAccess = "Disable"}
-  @{EnableNetworkProtection = "Disabled"}
-)
-
-$avPreference | Foreach-Object {
-  $avParams = $_
-  Set-MpPreference @avParams
-}
-
-# https://github.com/actions/runner-images/issues/4277
-# https://docs.microsoft.com/en-us/microsoft-365/security/defender-endpoint/microsoft-defender-antivirus-compatibility?view=o365-worldwide
-$atpRegPath = 'HKLM:\SOFTWARE\Policies\Microsoft\Windows Advanced Threat Protection'
-if (Test-Path $atpRegPath) {
-  Write-Output "Set Microsoft Defender Antivirus to passive mode"
-  Set-ItemProperty -Path $atpRegPath -Name 'ForceDefenderPassiveMode' -Value '1' -Type 'DWORD'
-}
-
-# From https://stackoverflow.com/a/46760714
-Write-Output "--- :windows: Setting up Package Manager"
-$env:ChocolateyInstall = Convert-Path "$((Get-Command choco).Path)\..\.."
-Import-Module "$env:ChocolateyInstall\helpers\chocolateyProfile.psm1"
-
-# This should avoid issues with symlinks not being supported in Windows.
-#
-# See how this build failed
-# https://buildkite.com/automattic/beeper-desktop/builds/2895#01919738-7c6e-4b82-8d1d-1c1800481740
-Write-Output "--- :windows: :linux: Enable developer mode to use symlinks"
-
-$developerMode = Get-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux
-
-if ($developerMode.State -eq 'Enabled') {
-  Write-Output "Developer Mode is already enabled."
-} else {
-  Write-Output "Enabling Developer Mode..."
-  try {
-    Enable-WindowsOptionalFeature -Online -FeatureName Microsoft-Windows-Subsystem-Linux -NoRestart
-  } catch {
-    Write-Output "Failed to enable Developer Mode. Continuing without it..."
-  }
-}
-
-if ($InstallPython) {
-  Write-Output "Run with InstallPython = true. Installing Python for Node.js native module compilation..."
-  & "$PSScriptRoot\install_python.ps1"
-  If ($LastExitCode -ne 0) { Exit $LastExitCode }
-} else {
-  Write-Output "Python installation not requested. Skipping Python installation."
-}
-
-if ($env:SKIP_CERTIFICATE_DOWNLOAD -eq "true") {
-  Write-Output "--- :lock_with_ink_pen: Skipping Code Signing Certificate download"
-} else {
-  & "setup_windows_code_signing.ps1"
-}
-
-# When using Electron Forge and electron2appx, building Appx requires the Windows 10 SDK
-#
-# See https://github.com/hermit99/electron-windows-store/tree/v2.1.2?tab=readme-ov-file#usage
-Write-Output "--- :windows: Checking whether to install Windows 10 SDK..."
-
-if ($SkipWindows10SDKInstallation) {
-  Write-Output "Run with SkipWindows10SDKInstallation = true. Skipping Windows 10 SDK installation check."
-  Exit 0
-}
-
-$windowsSDKVersionFile = ".windows-10-sdk-version"
-if (Test-Path $windowsSDKVersionFile) {
-  Write-Output "Found $windowsSDKVersionFile file, installing Windows 10 SDK..."
-
-  if ($InstallNativeCompilationTools) {
-    & "$PSScriptRoot\install_windows_10_sdk.ps1" -InstallNativeCompilationTools
-  } else {
-    & "$PSScriptRoot\install_windows_10_sdk.ps1"
-  }
-  If ($LastExitCode -ne 0) { Exit $LastExitCode }
-} else {
-  Write-Output "No $windowsSDKVersionFile file found, skipping Windows 10 SDK installation."
-}
-
-Write-Output "Windows host preparation for app distribution completed successfully."
-Exit 0
diff --git a/tests/test_prepare_windows_host_for_app_distribution.ps1 b/tests/test_prepare_windows_host_for_app_distribution.ps1
deleted file mode 100644
index 22b71ebe..00000000
--- a/tests/test_prepare_windows_host_for_app_distribution.ps1
+++ /dev/null
@@ -1,209 +0,0 @@
-# Tests the prepare_windows_host_for_app_distribution.ps1 script with various parameter combinations.
-#
-# This test covers multiple scenarios:
-# 1. -SkipWindows10SDKInstallation (should skip SDK installation check entirely)
-# 2. -SkipWindows10SDKInstallation -InstallNativeCompilationTools (should fail with validation error)
-# 3. No .windows-10-sdk-version file with -InstallNativeCompilationTools (should skip installation - no version file available)
-# 4. No .windows-10-sdk-version file without -InstallNativeCompilationTools (should skip installation)
-#
-# Note: These tests focus on parameter validation and decision logic only,
-# without performing expensive installations or downloads.
-
-param (
-  [int]$ExpectedExitCode = 0
-)
-
-# Ensure the output is UTF-8 encoded so we can use emojis...
-[System.Console]::OutputEncoding = [System.Text.Encoding]::UTF8
-$emojiGreenCheck = "$([char]0x2705)"
-$emojiRedCross = "$([char]0x274C)"
-
-# Skip certificate download for all tests to avoid AWS credential issues
-$env:SKIP_CERTIFICATE_DOWNLOAD = "true"
-
-Write-Output "Testing prepare_windows_host_for_app_distribution.ps1 with various parameter combinations"
-
-# Function to clean up test files
-function Remove-TestFiles {
-  if (Test-Path ".windows-10-sdk-version") {
-    Remove-Item ".windows-10-sdk-version" -Force
-  }
-  if (Test-Path "vs_buildtools.exe") {
-    Remove-Item "vs_buildtools.exe" -Force
-  }
-}
-
-# Test 1: -SkipWindows10SDKInstallation (should skip both SDK and native tools)
-Write-Output "`n--- Test 1: Skip SDK installation without native tools"
-Remove-TestFiles
-
-# Create a valid SDK version file to ensure it's not being used when skip is set
-$sdkVersion = "19041"
-"$sdkVersion" | Out-File .windows-10-sdk-version
-
-$output = & "$PSScriptRoot\..\bin\prepare_windows_host_for_app_distribution.ps1" -SkipWindows10SDKInstallation
-$exitCode = $LASTEXITCODE
-
-if ($exitCode -ne $ExpectedExitCode) {
-  Write-Output "$emojiRedCross Test 1: Expected exit code $ExpectedExitCode, got $exitCode"
-  Write-Output "Output was:"
-  Write-Output "$output"
-  Exit 1
-} else {
-  Write-Output "$emojiGreenCheck Test 1: Exit code matches expected value ($ExpectedExitCode)"
-}
-
-$expectedSkipMessage = "Skipping Windows 10 SDK installation check"
-if ($output -match [regex]::Escape($expectedSkipMessage)) {
-  Write-Output "$emojiGreenCheck Test 1: Found expected skip message in output"
-} else {
-  Write-Output "$emojiRedCross Test 1: Expected to find skip message, but got:"
-  Write-Output "$output"
-  Exit 1
-}
-
-# Test 2: -SkipWindows10SDKInstallation -InstallNativeCompilationTools (should fail with validation error)
-Write-Output "`n--- Test 2: Invalid parameter combination - skip SDK but attempt native compilation tools"
-Remove-TestFiles
-
-# Create a valid SDK version file (irrelevant since validation should fail before processing)
-"$sdkVersion" | Out-File .windows-10-sdk-version
-
-$output = & "$PSScriptRoot\..\bin\prepare_windows_host_for_app_distribution.ps1" -SkipWindows10SDKInstallation -InstallNativeCompilationTools 2>&1
-$exitCode = $LASTEXITCODE
-
-# Expect the script to fail with a validation error (non-zero exit code)
-if ($exitCode -eq 0) {
-  Write-Output "$emojiRedCross Test 2: Expected script to fail with validation error, but it succeeded with exit code $exitCode"
-  Write-Output "Output was:"
-  Write-Output "$output"
-  Exit 1
-} else {
-  Write-Output "$emojiGreenCheck Test 2: Script correctly failed with validation error (exit code $exitCode)"
-}
-
-# Check for our validation error message
-if ($output -match "Invalid parameter combination") {
-  Write-Output "$emojiGreenCheck Test 2: Found expected validation error message"
-} else {
-  Write-Output "$emojiRedCross Test 2: Expected validation error not found. Output:"
-  Write-Output "$output"
-  Exit 1
-}
-
-# Test 3: No .windows-10-sdk-version file with -InstallNativeCompilationTools (should skip installation)
-Write-Output "`n--- Test 3: No SDK version file with native compilation tools requested"
-Remove-TestFiles
-
-$output = & "$PSScriptRoot\..\bin\prepare_windows_host_for_app_distribution.ps1" -InstallNativeCompilationTools 2>&1
-$exitCode = $LASTEXITCODE
-
-if ($exitCode -ne $ExpectedExitCode) {
-  Write-Output "$emojiRedCross Test 3: Expected exit code $ExpectedExitCode, got $exitCode"
-  Write-Output "Output was:"
-  Write-Output "$output"
-  Exit 1
-} else {
-  Write-Output "$emojiGreenCheck Test 3: Exit code matches expected value ($ExpectedExitCode)"
-}
-
-$expectedNoFileSkipMessage = "No .windows-10-sdk-version file found"
-if ($output -match [regex]::Escape($expectedNoFileSkipMessage)) {
-  Write-Output "$emojiGreenCheck Test 3: Found expected skip message when no version file exists"
-} else {
-  Write-Output "$emojiRedCross Test 3: Expected to find skip message, but got:"
-  Write-Output "$output"
-  Exit 1
-}
-
-# Test 4: No .windows-10-sdk-version file without -InstallNativeCompilationTools (should skip everything)
-Write-Output "`n--- Test 4: No SDK version file and no native tools requested"
-Remove-TestFiles
-
-$output = & "$PSScriptRoot\..\bin\prepare_windows_host_for_app_distribution.ps1"
-$exitCode = $LASTEXITCODE
-
-if ($exitCode -ne $ExpectedExitCode) {
-  Write-Output "$emojiRedCross Test 4: Expected exit code $ExpectedExitCode, got $exitCode"
-  Write-Output "Output was:"
-  Write-Output "$output"
-  Exit 1
-} else {
-  Write-Output "$emojiGreenCheck Test 4: Exit code matches expected value ($ExpectedExitCode)"
-}
-
-$expectedNoFileSkipMessage = "No .windows-10-sdk-version file found"
-if ($output -match [regex]::Escape($expectedNoFileSkipMessage)) {
-  Write-Output "$emojiGreenCheck Test 4: Found expected no-file skip message"
-} else {
-  Write-Output "$emojiRedCross Test 4: Expected to find no-file skip message, but got:"
-  Write-Output "$output"
-  Exit 1
-}
-
-#
-# FIXME: Disabled because I haven't figured out how to set the env var in a way that the scripts can read but doesn't alter the machine.
-# Tracked in https://linear.app/a8c/issue/AINFRA-1467
-#
-# # Test 5: If CI AMI version is == 0.2, only installs certificates
-# Write-Output "`n--- Test 5: If AMI version env == 0.2, only installs certificates"
-# Remove-TestFiles
-
-# # Notice that setting via $env is process bound, which is perfect for unit tests.
-# $env:AMI_VERSION = '0.2'
-
-# # Notice running the command via . so that it runs in the same process and accesses AMI_VERSION
-# $output = . "$PSScriptRoot\..\bin\prepare_windows_host_for_app_distribution.ps1"
-# $exitCode = $LASTEXITCODE
-
-# if ($exitCode -ne $ExpectedExitCode) {
-#   Write-Output "$emojiRedCross Test 5: Expected exit code $ExpectedExitCode, got $exitCode"
-#   Write-Output "Output was:"
-#   Write-Output "$output"
-#   Exit 1
-# } else {
-#   Write-Output "$emojiGreenCheck Test 5: Exit code matches expected value ($ExpectedExitCode)"
-# }
-
-# $expectedOnlyCertsMessage = "Tooling is already pre-installed in AMI versions >= 0.2. Only installing code signing certificate."
-# if ($output -match [regex]::Escape($expectedOnlyCertsMessage)) {
-#   Write-Output "$emojiGreenCheck Test 5: Found expected message regarding AMI version and what to install."
-# } else {
-#   Write-Output "$emojiRedCross Test 5: Expected to find AMI version acknowledgement, but got:"
-#   Write-Output "$output"
-#   Exit 1
-# }
-
-# # Test 6: If CI AMI version is > 0.2, only installs certificates
-# Write-Output "`n--- Test 6: If AMI version env > 0.2, only installs certificates"
-# Remove-TestFiles
-
-# # Notice that setting via $env is process bound, which is perfect for unit tests.
-# $env:AMI_VERSION = '1.0'
-
-# # Notice running the command via . so that it runs in the same process and accesses AMI_VERSION
-# $output = . "$PSScriptRoot\..\bin\prepare_windows_host_for_app_distribution.ps1"
-# $exitCode = $LASTEXITCODE
-
-# if ($exitCode -ne $ExpectedExitCode) {
-#   Write-Output "$emojiRedCross Test 6: Expected exit code $ExpectedExitCode, got $exitCode"
-#   Write-Output "Output was:"
-#   Write-Output "$output"
-#   Exit 1
-# } else {
-#   Write-Output "$emojiGreenCheck Test 6: Exit code matches expected value ($ExpectedExitCode)"
-# }
-
-# $expectedOnlyCertsMessage = "Tooling is already pre-installed in AMI versions >= 0.2. Only installing code signing certificate."
-# if ($output -match [regex]::Escape($expectedOnlyCertsMessage)) {
-#   Write-Output "$emojiGreenCheck Test 6: Found expected message regarding AMI version and what to install."
-# } else {
-#   Write-Output "$emojiRedCross Test 6: Expected to find AMI version acknowledgement, but got:"
-#   Write-Output "$output"
-#   Exit 1
-# }
-
-# Final clean up
-Remove-TestFiles
-
-Write-Output "`n$emojiGreenCheck All tests completed successfully."