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 ...
“When 'Windows Update Cleanup' is selected and Disk Cleanup is run for the first ... It brings a smattering of new features, most of which are unlikely to affect the vast majority of current ...
While this feature was intended to improve efficiency ... with the discrepancy likely caused by a reporting bug in Disk Cleanup. Users have reported the problem on forums and through the Windows ...