Windows 10 Compatibility Issues

A small number of users who try to use old versions of CCleaner in the latest Windows 10 update are being told that CCleaner is '..not compatible with this version of Windows'. The version of Windows 10 which is affected is 14393.576.

Fortunately this issue is easily resolved by downloading and reinstalling CCleaner from the following links:

- If you're a Free user, please download CCleaner from the following link:

- If you've paid for CCleaner Professional, please download CCleaner Professional from the following link:

If you need to locate your license key, you can use our license key lookup tool here: