用管理員模式打開cmd.exe命令：分別輸入下面二條命令。

FOR %F IN ("%SystemRoot%\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientTools-Package~*.mum") DO (DISM /Online /NoRestart /Add-Package:"%F")
FOR %F IN ("%SystemRoot%\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientExtensions-Package~*.mum") DO (DISM /Online /NoRestart /Add-Package:"%F")

再執行gpedit.msc即可

轉自：Windows 10/11家庭版打開組策略編輯器(gpedit.msc) - 知乎