Cleaning Up Windows Without Interaction

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. <span id="more-4583"></span> Here's the same thing in PowerShell in case you care: ```powershell $vol = Get-Item HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\VolumeCaches $vol.GetSubKeyNames() | ForEach-Object { $vol.OpenSubKey($_, $true).SetValue('StateFlags0000', 2) } cleanmgr /SAGERUN:0 ```