New
#60
Cleanup system files is a one time thing
I did windows update cleanup after a clean install and before this update was offered so that's all I would need to use system cleanup for/ for a very long time.
A year at least.
Windows 7 System Clean Up has been reported to be having problems. Hopefully Microsoft will get it fixed soon.
At the present time I don't use it.
If you install KB3021952 you will then be offered KB3034196 which should also be installed.