I am running Vista Home Premium. About 50% of the time I run CC it stops responding. This happened with the last version..as well as the current version. Here is the info I got from the Vista problem center...hope it helps.
Problem signature
Problem Event Name: APPCRASH
Application Name: CCleaner.exe
Application Version: 1.41.0.544
Application Timestamp: 46974170
Fault Module Name: MSVBVM60.DLL
Fault Module Version: 6.0.97.97
Fault Module Timestamp: 4549bd5e
Exception Code: c0000005
Exception Offset: 0000ad30
OS Version: 6.0.6000.2.0.0.768.3
Locale ID: 1033
Additional Information 1: a185
Additional Information 2: 56ebaf86d5920c7531e7c4bfbc16c841
Additional Information 3: 83df
Additional Information 4: 4e4229f88e15fe6fbf146471d3d09caa