Hello I have a big problem, I've had it for a while but I just understood what caused it: every time I play a game (any game, any platform) around 10 pm the game alt tabs on its own.
A couple of days ago I installed a software to track what steals windows focus and ccleaner bug report.exe seems to be the culprit. I've tried to block it on the antivirus (as I've seen suggested somewhere) but yesterday night it happened again. I've looked in the CCleaner settings if there was anything related but if there is, I haven't found it.
It's the fact that it happens at the same time each day that is the clue - its a schduled task which runs every day at the time it was installed/enabled.
You can solve it by changing the task schedule so that it runs at Startup (or at a time of your choosing). If it runs at startup you will never see it and it won't interrupt your gaming.
PS. As said there you could disable the scheduled task altogether, but if you do that then it will be reinstated at the next CCleaner update so you'll have to remember to disable it again after an update.
I'll do it right away and see if it works but I guess it will, the process was indeed scheduled to run every day at 10 pm so by setting at startup should fix it.