winutil/functions/public/Invoke-WPFUpdatesdefault.ps1

function Invoke-WPFUpdatesdefault {
    <#

    .SYNOPSIS
        Resets Windows Update settings to default

    #>
    $ErrorActionPreference = 'SilentlyContinue'

    Write-Host "Removing Windows Update policy settings..." -ForegroundColor Green

    Remove-Item -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU" -Recurse -Force
    Remove-Item -Path "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\DeliveryOptimization" -Recurse -Force
    Remove-Item -Path "HKLM:\SOFTWARE\Microsoft\WindowsUpdate\UX\Settings" -Recurse -Force
    Remove-Item -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\Device Metadata" -Recurse -Force
    Remove-Item -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\DriverSearching" -Recurse -Force
    Remove-Item -Path "HKLM:\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate" -Recurse -Force

    Write-Host "Reenabling Windows Update Services..." -ForegroundColor Green

    Write-Host "Restored BITS to Manual"
    Set-Service -Name BITS -StartupType Manual

    Write-Host "Restored wuauserv to Manual"
    Set-Service -Name wuauserv -StartupType Manual

    Write-Host "Restored UsoSvc to Automatic"
    Set-Service -Name UsoSvc -StartupType Automatic

    Write-Host "Restored WaaSMedicSvc to Manual"
    Set-Service -Name WaaSMedicSvc -StartupType Manual

    Write-Host "Enabling update related scheduled tasks..." -ForegroundColor Green

    $Tasks =
        '\Microsoft\Windows\InstallService\*',
        '\Microsoft\Windows\UpdateOrchestrator\*',
        '\Microsoft\Windows\UpdateAssistant\*',
        '\Microsoft\Windows\WaaSMedic\*',
        '\Microsoft\Windows\WindowsUpdate\*',
        '\Microsoft\WindowsUpdate\*'

    foreach ($Task in $Tasks) {
        Get-ScheduledTask -TaskPath $Task | Enable-ScheduledTask -ErrorAction SilentlyContinue
    }

    Write-Host "Windows Local Policies Reset to Default"
    secedit /configure /cfg "$Env:SystemRoot\inf\defltbase.inf" /db defltbase.sdb

    Write-Host "===================================================" -ForegroundColor Green
    Write-Host "---  Windows Update Settings Reset to Default   ---" -ForegroundColor Green
    Write-Host "===================================================" -ForegroundColor Green

    Write-Host "Note: You must restart your system in order for all changes to take effect." -ForegroundColor Yellow
}