Feedback: Why I can't use CCleaner + buggy UI + buggy general enquiry form. in CCleaner Bug Reporting Posted 13 hours ago As above open CCleaner (if from the bin then 'Open' and not 'Run') and change the Home Screen to be Custom Clean and not Health Check. If you have not used it for 'a month or so' then CCleaner will be checking for a new version (and there is one, there is usually a monthly update). If your antivirus or firewall is blocking the update that could explain the spinning circle. Can you tell us: Your Windows 10 version, your antivirus and what version it is, and your current CCleaner version.