Windows Cleanup

Free Up Disk Space Without Deleting Personal Files

Free disk space safely by reviewing large files, using Disk Cleanup, and avoiding dangerous delete commands.

Low disk space can slow Windows down and cause update problems. The safest approach is to identify large files and use built-in cleanup tools instead of deleting unknown folders.

Check drive free space

Get-PSDrive -PSProvider FileSystem

Find large files in Downloads

Get-ChildItem "$env:USERPROFILE\Downloads" -Recurse -File -ErrorAction SilentlyContinue | Sort-Object Length -Descending | Select-Object FullName, @{Name="SizeMB";Expression={[math]::Round($_.Length/1MB,2)}} -First 20

Use Disk Cleanup

cleanmgr

What not to delete

  • Do not delete unknown files from C:\Windows.
  • Do not delete driver folders randomly.
  • Do not delete restore points just to gain a small amount of space.