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