Disable Windows 10 Automatic Updates

Why?

It’s annoying if Windows keep updating automatically in the background and even reboot when idle.

Risk?

Yes, If auto updates are disabled, one should take care to manually update Windows on a regular basis.

How?

Run PowerShell (as Administrator):

function disableWindowsAutoUpdate{
    param(
    $windowsRegHive='REGISTRY::HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows',
    $hiveName='WindowsUpdate',
    $keyName='AU',
    $disable='0'
    )
    try{
        # set the Windows Update service to "disabled"
        stop-service wuauserv -force
        set-service wuauserv -startup disabled
        $currentAUSettings=(get-itemproperty 'REGISTRY::HKLM\SYSTEM\CurrentControlSet\Services\wuauserv').Start
        if($currentAUSettings -eq 4){
            write-host "Windows Automatic Updates have been disabled."
        }        
        $autoUpdateSettings = (New-Object -com 'Microsoft.Update.AutoUpdate').Settings
        $autoUpdateSettings.NotificationLevel=1
        $autoUpdateSettings.Save
        write-host "Option to 'never check for update (not recommended)' has been set"
        
        # Set Windows AU registry key
        if(!(get-item "$windowsRegHive\$hiveName")){
            New-Item -Path $windowsRegHive -Name $hiveName -Force
        }        
        $null=New-ItemProperty -Path "$windowsRegHive\$hiveName" -Name $keyName -Value $disable -PropertyType DWORD -Force
        write-host "Registry key $keyName has been set to value $disable"
        return $true
    }catch{
        write-warning $_
        return $false
    }
}
# Legacy commands
REG ADD HKLM\SYSTEM\CurrentControlSet\Services\WaasMedicSvc /v Start /f /t REG_DWORD /d 4
REG ADD HKLM\SYSTEM\CurrentControlSet\Services\wuauserv /v Start /f /t REG_DWORD /d 4
REG ADD HKLM\SYSTEM\CurrentControlSet\Services\UsoSvc /v Start /f /t REG_DWORD /d 4

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