The simplest and most direct way to permanently delete files or folders is by using the Shift + Delete keyboard shortcut.

If Disk Cleanup is not working properly and does not remove Windows Update files, Temporary files, Windows.old folder, Internet files, etc. do this to fix the issue. Remove Temporary Files manually ...

When your vacuum cleaner has lived out its lifespan, you may want to just throw it in the garbage, but that is the wrong way ...