New-WinUserLanguageList en-GB
Set-WinUserLanguageList en-GB -Force
Set-WinSystemLocale en-GB
Set-Culture en-GB
Set-TimeZone -Id "GMT Standard Time"
Set-WinHomeLocation -GeoId 0xf2

[System.Reflection.Assembly]::LoadWithPartialName("System.Windows.Forms") | Out-Null
Add-Type -AssemblyName PresentationFramework
$msgBoxInput = [System.Windows.MessageBox]::Show('Do you want to logoff, so the display language change to English/United Kingdom?
Do not forget to save your work before logoff!','WARNING','YesNo','Warning')
switch ($msgBoxInput) {
	'Yes' {
		Logoff 
	}

	'No' {
		Exit
	}
}