reg delete HKLM\SYSTEM\CurrentControlSet\Control\Nls\Language /v InstallLanguage /f reg delete HKLM\SYSTEM\CurrentControlSet\Control\Nls\Language /v Default /f reg add HKLM\SYSTEM\CurrentControlSet\Control\Nls\Language /v InstallLanguage /t REG_SZ /d 0401 /f reg add HKLM\SYSTEM\CurrentControlSet\Control\Nls\Language /v Default /t REG_SZ /d 1025 /f powershell.exe Set-WinUILanguageOverride -Language ar-sa powershell.exe Set-WinUserLanguageList ar-sa -Force pause