# Requires running as administrator
# Removes selected built-in Appx packages without winget.
# Installed packages are removed for existing users when supported.
# Provisioned packages are removed so they are not installed for new users.

[CmdletBinding(SupportsShouldProcess = $true, ConfirmImpact = "High")]
param(
    [switch]$IncludeOneDrive
)

$ErrorActionPreference = "Continue"

$IsAdministrator = ([Security.Principal.WindowsPrincipal] [Security.Principal.WindowsIdentity]::GetCurrent()).IsInRole(
    [Security.Principal.WindowsBuiltInRole]::Administrator
)

if (-not $IsAdministrator) {
    Write-Error "This script must be run from an administrator PowerShell session."
    exit 1
}

$PackageNamePatterns = @(
    "MicrosoftWindows.Client.WebExperience",
    "Microsoft.OutlookForWindows",
    "Microsoft.WindowsFeedbackHub",
    "Microsoft.XboxApp",
    "Microsoft.GamingApp",
    "Microsoft.Xbox.TCUI",
    "Microsoft.XboxGameOverlay",
    "Microsoft.XboxGamingOverlay",
    "Microsoft.XboxIdentityProvider",
    "Microsoft.XboxSpeechToTextOverlay",
    "Microsoft.PowerAutomateDesktop",
    "Microsoft.MicrosoftStickyNotes",
    "Microsoft.BingWeather",
    "MSTeams",
    "MicrosoftTeams",
    "Microsoft.Todos",
    "Microsoft.BingSearch",
    "Microsoft.BingNews",
    "Clipchamp.Clipchamp"
)

function Invoke-InstalledAppxPackageRemoval {
    param(
        [string]$Pattern
    )

    $Packages = Get-AppxPackage -AllUsers -Name $Pattern -ErrorAction SilentlyContinue

    if (-not $Packages) {
        Write-Host "No installed Appx package found for: $Pattern" -ForegroundColor DarkGray
        return
    }

    foreach ($Package in $Packages) {
        $Target = "$($Package.Name) [$($Package.PackageFullName)]"
        Write-Host "Removing installed package: $Target" -ForegroundColor Cyan

        if ($PSCmdlet.ShouldProcess($Target, "Remove installed Appx package")) {
            try {
                Remove-AppxPackage -Package $Package.PackageFullName -AllUsers -ErrorAction Stop
                Write-Host "Removed installed package: $($Package.Name)" -ForegroundColor Green
            }
            catch {
                Write-Warning "Failed to remove installed package $($Package.Name): $_"
            }
        }
    }
}

function Invoke-ProvisionedAppxPackageRemoval {
    param(
        [string]$Pattern
    )

    $ProvisionedPackages = Get-AppxProvisionedPackage -Online |
        Where-Object {
            $_.DisplayName -like $Pattern -or
            $_.PackageName -like "$Pattern*"
        }

    if (-not $ProvisionedPackages) {
        Write-Host "No provisioned Appx package found for: $Pattern" -ForegroundColor DarkGray
        return
    }

    foreach ($Package in $ProvisionedPackages) {
        $Target = "$($Package.DisplayName) [$($Package.PackageName)]"
        Write-Host "Removing provisioned package: $Target" -ForegroundColor Cyan

        if ($PSCmdlet.ShouldProcess($Target, "Remove provisioned Appx package for future users")) {
            try {
                Remove-AppxProvisionedPackage -Online -PackageName $Package.PackageName -ErrorAction Stop | Out-Null
                Write-Host "Removed provisioned package: $($Package.DisplayName)" -ForegroundColor Green
            }
            catch {
                Write-Warning "Failed to remove provisioned package $($Package.DisplayName): $_"
            }
        }
    }
}

function Invoke-OneDriveRemoval {
    $Installers = @(
        "$env:SystemRoot\System32\OneDriveSetup.exe",
        "$env:SystemRoot\SysWOW64\OneDriveSetup.exe"
    )

    foreach ($Installer in $Installers) {
        if (-not (Test-Path $Installer)) {
            continue
        }

        Write-Host "Removing OneDrive with: $Installer" -ForegroundColor Cyan

        if ($PSCmdlet.ShouldProcess($Installer, "Uninstall OneDrive")) {
            try {
                Start-Process -FilePath $Installer -ArgumentList "/uninstall" -Wait -NoNewWindow
                Write-Host "OneDrive uninstall command completed." -ForegroundColor Green
            }
            catch {
                Write-Warning "Failed to uninstall OneDrive with $Installer`: $_"
            }
        }
    }
}

Write-Host "Removing selected built-in Appx applications..." -ForegroundColor Cyan
Write-Host "This can affect existing users and the default package set for new users." -ForegroundColor Yellow
Write-Host ""

foreach ($Pattern in $PackageNamePatterns) {
    Invoke-InstalledAppxPackageRemoval -Pattern $Pattern
    Invoke-ProvisionedAppxPackageRemoval -Pattern $Pattern
    Write-Host ""
}

if ($IncludeOneDrive) {
    Invoke-OneDriveRemoval
}
else {
    Write-Host "OneDrive was not removed. Re-run with -IncludeOneDrive to call the built-in OneDrive uninstaller." -ForegroundColor Yellow
}

Write-Host ""
Write-Host "Done. Restart Windows before creating new user profiles." -ForegroundColor Green