Command Prompt commands

Function	Command	Notes
Delete desktop.ini recursively	del /s /q /f /a ".\desktop.ini"	deletes from current and subdirectories
Download GroupPolicyEditor for Homer users	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")
Folder Junction	mklink /J link target
Foreach line in file do	for /F "usebackq delims=" %i in ("file.txt") do echo %i
Convert/Compress video to h.265 (FFMPEG)	ffmpeg -i "source.mp4" -c:v libx265 -preset slow -b:v 0 -c:a aac -b:a 0 "target.mp4"	use hevc_nvenc instead of libx265 for faster GPU encoding, but less efficiency
Recursive ffmpeg	for /r %i in (*) do if /i "%~xi"==".MP4" ffmpeg -i %i -c:v libx265 -c:a aac "%~dpi%~ni-x265%~xi"	/r: recursive /i: case insensitive %i: variable name %~xi: extension name %~dpi: directory path %~ni: file name

PowerShell commands

Function	Command	Notes
Unblock files	Get-ChildItem -Path . | Unblock-File	unblocks all files under current directory replace -Path . to -Path "C:\..." to unblock another directory