Chrome Dialogue Box Freezing

Hi.
I did a cleanup with CCleaner for the first time yesterday, and now whenever I open a dialogue box in Chrome, Chrome freezes. This happens whether I’m trying to attach, downlownd or print from Chrome. It happens in multiple user profiles, but only on the computer I cleaned. Clearing the cache and disabling extensions haven’t helped.
Which setting would CCleaner have changed that might have caused this, and how do I undo it?

Could you expand on that and say exactlty which parts of CCleaner you used?

Health Check, Custom Clean, are the cleaning tools, but there are other tools such as Software & Driver updaters, Registry Editor, etc. etc.

If you don’t say which bits you have used then it leaves us with too much to consider and to have an idea what the issue may be..