Disable Performance Script

# ------------------------------------------------------------
# WINDOWS 11 RESTORATION SCRIPT
# PURPOSE: Revert all system changes made by optimization script
# Compatible with: Optimize-Windows11.ps1
# ------------------------------------------------------------
# Description:
# This PowerShell script restores Windows 11 to its default state
# by re-enabling essential services, restoring system apps,
# reactivating telemetry, and returning to the balanced power plan.
# It is designed to fully undo all optimizations applied by
# the "Optimize-Windows11.ps1" script.
#
# How to Run:
# 1. Save this file as "Restore-Windows11.ps1".
# 2. Open PowerShell as Administrator and run: Set-ExecutionPolicy -Scope Process -ExecutionPolicy Bypass
# 3. Right-click the file and select "Run with PowerShell".
#    (Or open PowerShell as Administrator and execute it manually.)
# 4. If script execution is blocked, run:
#       Set-ExecutionPolicy Bypass -Scope Process -Force
# 5. Once completed, restart your PC to apply all changes.
# ------------------------------------------------------------

Write-Host "Starting restoration of Windows 11 default configuration..." -ForegroundColor Cyan

# 1. Restore essential services
$services = @(
  "SysMain",
  "DiagTrack",
  "WSearch",
  "WerSvc",
  "RemoteRegistry",
  "Fax",
  "RetailDemo",
  "MapsBroker",
  "SharedAccess",
  "BluetoothSupportService",
  "OneSyncSvc",
  "PhoneSvc",
  "CDPUserSvc",
  "edgeupdate",
  "edgeupdatem"
)

foreach ($service in $services) {
    Get-Service -Name $service -ErrorAction SilentlyContinue | ForEach-Object {
        Set-Service -Name $_.Name -StartupType Automatic
        Start-Service -Name $_.Name -ErrorAction SilentlyContinue
        Write-Host "Service restored: $($_.Name)"
    }
}

# 2. Re-enable telemetry and diagnostic tasks
Write-Host "Re-enabling telemetry tasks..." -ForegroundColor Yellow
$tasks = @(
  "\Microsoft\Windows\Application Experience\ProgramDataUpdater",
  "\Microsoft\Windows\Customer Experience Improvement Program\Consolidator",
  "\Microsoft\Windows\Customer Experience Improvement Program\UsbCeip",
  "\Microsoft\Windows\DiskDiagnostic\Microsoft-Windows-DiskDiagnosticDataCollector",
  "\Microsoft\Windows\Feedback\Siuf\DmClient",
  "\Microsoft\Windows\Feedback\Siuf\DmClientOnScenarioDownload"
)
foreach ($task in $tasks) {
  schtasks /Change /TN $task /Enable 2>$null
}

# 3. Reinstall OneDrive
Write-Host "Reinstalling OneDrive..." -ForegroundColor Yellow
& "$env:SystemRoot\System32\OneDriveSetup.exe" /install
Write-Host "OneDrive restored."

# 4. Re-enable Cortana and Widgets
Write-Host "Re-enabling Cortana and Widgets..." -ForegroundColor Yellow
reg delete "HKLM\SOFTWARE\Policies\Microsoft\Windows\Windows Search" /v AllowCortana /f
reg delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Feeds" /v ShellFeedsTaskbarViewMode /f
reg delete "HKCU\Software\Microsoft\Windows\CurrentVersion\Feeds" /v EnableFeeds /f

# 5. Re-enable Edge AutoUpdate
Write-Host "Re-enabling Edge automatic updates..." -ForegroundColor Yellow
reg delete "HKLM\SOFTWARE\Policies\Microsoft\EdgeUpdate" /f

# 6. Restore power plan to Balanced
Write-Host "Restoring Balanced power plan..." -ForegroundColor Yellow
powercfg -setactive SCHEME_BALANCED
powercfg -change -monitor-timeout-ac 10
powercfg -change -disk-timeout-ac 20
powercfg -change -standby-timeout-ac 30
powercfg -hibernate on

# 7. Restore default visual effects
Write-Host "Re-enabling visual effects and animations..." -ForegroundColor Yellow
Set-ItemProperty "HKCU:\Control Panel\Desktop" "UserPreferencesMask" ([byte[]](0x9E,0x1E,0x07,0x80,0x12,0x00,0x00,0x00))
Set-ItemProperty "HKCU:\Control Panel\Desktop\WindowMetrics" MinAnimate 1
Set-ItemProperty "HKCU:\Software\Microsoft\Windows\CurrentVersion\Explorer\VisualEffects" VisualFXSetting 1
Set-ItemProperty "HKCU:\Software\Microsoft\Windows\DWM" EnableAeroPeek 1
Set-ItemProperty "HKCU:\Software\Microsoft\Windows\DWM" EnableBlurBehind 1

# 8. Restore Delivery Optimization and network settings
Write-Host "Restoring Delivery Optimization and network configuration..." -ForegroundColor Yellow
Set-ItemProperty -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization\Config" -Name DODownloadMode -Value 1 -Force
netsh int tcp set global autotuninglevel=normal
netsh int tcp set global rss=default
netsh int tcp set global chimney=default

# 9. Reinstall system apps (requires Microsoft Store)
Write-Host "Reinstalling system apps (Microsoft Store required)..." -ForegroundColor Yellow
Get-AppxPackage -AllUsers | ForEach-Object {
    Add-AppxPackage -DisableDevelopmentMode -Register "$($_.InstallLocation)\AppxManifest.xml" -ErrorAction SilentlyContinue
}

# 10. Restore Windows Defender default settings
Write-Host "Restoring Windows Defender default settings..." -ForegroundColor Yellow
Set-MpPreference -MAPSReporting 1 -ErrorAction SilentlyContinue
Set-MpPreference -SubmitSamplesConsent 1 -ErrorAction SilentlyContinue
Set-MpPreference -PUAProtection Enabled -ErrorAction SilentlyContinue

# Finalization
Write-Host "System restoration completed successfully." -ForegroundColor Cyan
Write-Host "Restart your PC to apply all changes." -ForegroundColor Green