Add SuperAntiSpyware to your toolbox. When I get a call for anything performance related, I run

Malwarebytes
CCleaner
SuperAntiSpyware

in that order. 99% of the time I find what I need after just 2 of the 3, but as long as it's on my thumb drive, why not run all 3? They pay me a 1 hour minimum anyway, so I try to give them 60 minutes of work for their $75.

Also open a run prompt and type

%temp%

and delete everything in that folder that you can. Some files will be in use and not able to be deleted.

Then internet cache and cookies if anything remains after the 3 tools.

If you still have problems, reinstall your browsers.