I just installed CC ver 525 on my Win 10 laptop. I ran a scan and it said it listed files to be removed including 5MB for IE temp internet files. When it finished it said files were deleted. I ran scan again and the IE history 5MB temporary internet files were still there.
What is going on with IE these past few months?
I have been using CC for many, many years and never a problem and now it seems there have been problems with the past several updated versions and IE temp internet files..
From my experience Win10 will immediately download "needed" files after they're cleaned, such as those news feeds, weather, etc., you just have to expect it's going to add those cache/Temporary Internet Files back if you have certain Windows features or apps enabled.
even though you may have closed them Alice, they or something related, may still be running.
Task Manager will confirm that.
if still no luck, use the inbuilt IE browser cleaner.
try running CC with the PC in Safe Mode, if it cleans everything as expected from that mode, than that indicates something is running in normal mode that is causing your grief.
over in another current thread, there is talk of MS Search indexing causing some issues in this matter and stopping that process helped.