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CCleaner - FAQ

Optimization and Cleaning

What operating systems does CCleaner support?

CCleaner is fully tested and compatible with all the latest Windows OSs.

This includes both 32-bit and 64-bit versions of:

  • Windows 10
  • Windows 8
  • Windows 7

For business users, we also support:

  • Windows Server 2012
  • Windows Server 2008 R2
  • Windows Server 2008
  • Windows Server 2003

Additionally we have released a version of CCleaner for Macs, which requires:

  • Mac OS X 10.8 Mountain Lion to 10.11 El Capitan 64-bit editions