Just a curiosity question. Disk Cleanup has been spending 100% of one of my cores for quite a while and still going. Seems to be spending a lot of time especially on Windows Update Cleanup.
Can't quite understand why deleting files should be such an intensive activity. Especially since it already spent quite a lot of time calculating what it could delete.
Why does Disk Cleanup take so much time and cpu? What does it do that is so intensive?