Updating / Installing CCleaner If your antivirus detects a problem (thanks TwistedMetal) How to check your installer is authentic Various solutions to update / installation problems (thanks Andavari) "Windows can't access specified device, path, or file." error after install (thanks MTA)   Using CCleaner If CCleaner is not deleting Chrome History (thanks TwistedMetal) Fix for corrupted Recycle Bin (thanks Hazel) If system restore points do