How long have you been using CCleaner?
having seen 'simular' problem practically ever since CC added the toolbar I'd have to guess since I'm not positive I've ever waited 10 mins for it to boot up.
Do you get a stop error or mention of files missing hence why windows can't boot. Can it boot to safe mode using F8 at startup? Uninstalled CCleaner and reinstalled it?
When ccleaner updated, did you uninstall old version before installing new one?
My drives pass the mfgr and other tests I've ran. Can't boot to safemode. Seems it runs fine until a situation occurs and then when run it there is no indication of a problem until attempt to restart. I have noticed some entries before such crash, but not always. Such as ole files within reg scan. I haven't noticed ole files mentioned in ccleaner reg scans in year possibly years until lately. Others mentioned include hive files.
I create the backup but windows crashes out (unable to restart) and I haven't tried reapplying such once I get xp back up and running. I have looked several times in event viewer for cause but no entries pertaining to the crash ever exist.
The os crash is usually corrupt or missing security or sam or others located within system32/config folder. Usually the files aren't missing. Once it is back up and running, system restore is corrupt as usually seen when ever I've needed such GoBack (Wildfile)
