I cannot get CCCleaner to open. As soon as I enter the product key, the app closes and won’t reopen. I’ve triend uninstalling/reinstalling, loading the free version then upgrating, run as admininstrator, turned off anit virus, etc, etc, etc. Basically every suggestion I could find on the internet. Nothing solves the issue. Running WIndows 11. Any suggestions would be greatly appreciated. I’ve used the product for several years with no issues until now. Thanks.
Odd that it would just close, normally if the key was invalid then you would get a warning.
The answers to a few questions may help work out what may be going on:
If you don’t attempt to enter your key then does CCleaner run as the Free version?
Where are you downloading the installer from?
Try the Slim installer, 3rd down here: Download CCleaner builds | CCleaner Portable, Slim, and more
Did you let CCleaner open from the installer?
If CCleaner closes after entering the product key and won’t reopen, it could be a compatibility issue, corrupted installation, or a licensing server conflict. Try completely uninstalling CCleaner using Revo Uninstaller to remove all traces, then reinstall the latest version. Also, check Windows Event Viewer (eventvwr.msc > Windows Logs > Application) for error details. If the issue persists, try running it in compatibility mode (Windows 10) or installing an older version. If all else fails, contact CCleaner support to verify your license key isn’t being blocked.