能简单帮我翻译下嘛(标签-mr|关键词-Client)

各位可爱可敬的程序员们，请问
@echo off
pushd "%dp0"
dir /b %systemroot%\Windows\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientExtensions-Package3*.mum >gp.txt
dir /b %systemroot%\servicing\Packages\Microsoft-Windows-GroupPolicy-ClientTools-Package~3*.mum >>gp.txt
for /f %%i in ('findstr /i . gp.txt 2^>nul') do dism /online /norestart /add-package:"%systemroot%\servicing\Packages%%i"
pause

这代码啥意思？能简单帮我翻译下嘛？这代码有危险吗？还有这代码执行了，怎么才能逆执行？

求助