BEWARE! After upgrading to CCleaner 7 and running the usual scan, I let it clean up all the errors and update software and drivers. On restart, Windows wouldn’t load, but I got “Stop code: IRQL_NOT_LESS_THAN_OR_EAUAL (0XA)” and “What failed: ntoskrnl.exe”. There were two recent update rollback options, the first completed OK, but the second including drivers failed. My only recourse seems to be to reinstall windows and all the other software that I have. That’s quite drastic. Could the Ccleaner team perhaps write some code to check updates before installing or try them on their own systems first then proscribing any that caused issues?