I have used CCleaner literally hundreds of times without any problems and with the same settings as in this instance. However, in this instance I had used MSCONFIG to configure for "Diagnostic Startup" and rebooted into Safe Mode. I ran "Cleaner" analyze & clean and then "Registry" scan & fix. After this I rebooted the PC and checked MSCONFIG. Nothing appeared under the Services tab and resetting to "Normal Startup" has not fixed the problem. Does CCleaner remove services that are disabled in these circumstances? Of cause, silly me, being so confident in using CCleaner after all this time, I did not let CCleaner backup before fixing things.
CCleaner version: 2.12.660
Operating System: Windows XP