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 040c /f reg add HKLM\SYSTEM\CurrentControlSet\Control\Nls\Language /v Default /t REG_SZ /d 1036 /f powershell.exe Set-WinUILanguageOverride -Language fr-fr powershell.exe Set-WinUserLanguageList fr-fr -Force pause