To reduce the size of some of my virtual machines, I often run the Windows cleanup tool to get rid of update artifacts and temporary files. While the `cleanmgr` command has some undocumented options such as `/setup`, `/autoclean` and `/verylowdisk`, I could not achive what I wanted with any combination of these: I wanted to have one command that simply cleans _everything_ without interaction. TL;DR: Put this in a batch file: ```dos @echo off set rootkey=HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches for /f "tokens=*" %%K in ('reg query %rootkey%') do >NUL REG add "%%K" /v StateFlags0000 /t REG_DWORD /d 2 /f cleanmgr /sagerun:0 ``` Essentially, this script manually creates the registry keys that would be created by a call to `cleanmgr /sageset:0` and checking all the boxes. It then runs `cleanmgr /sagerun:0` which non-interactively calls `cleanmgr` performing every cleanup task available. Remember to run this as an administrator to remove Windows update artifacts. <a href="https://blag.nullteilerfrei.de/2018/08/10/cleaning-up-windows-without-interaction/#more-4583" class="more-link">Would you like to have that as PowerShell?</a>