Same problem as everyone else.
Windows 10 Build 1803
Kaspersky Internet Security 2018 h
Ccleaner versions 5.44, 5.43 and 5.42 shut down without an error message after clicking the "Run Cleaner" button. Scans fine. It just won't clean.
I had to revert to version 5.41 in order for Ccleaner to work again. This is NOT a Kaspersky problem. I tried disabling it and then completely removed it to be certain.
I love Ccleaner and have been using it for years but I won't be giving up my anti-virus program any time soon.
Get this fixed Piriform. It is definitely on you!
Oh yeah, any suggestions for a replacement to Ccleaner?
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I found a fix in another thread.