I am running WinXP SP3. When I used an older version of CCleaner (2.21), it always found some registry issues after uninstalling a program. The new version (2.27) does not.
Just an example. I uninstalled Yahoo Messenger, and then ran an older verion of CCleaner (2.21). It found a lot of unused registry issues releated to Yahoo Messenger. Deleting them worked fine. If I reinstall and uninstall Yahoo Messenger again, and run the new version of CCleaner (2.27), it finds nothing in the registry. I can go into the registry and see them.
If I uninstall the new version of CCleaner (2.27), and install an older version (2.21), it finds the Yahoo Messenger registy issues.
I think CCleaner developers should work more on this... do you know? I complained about a problem using winapp2.ini file, which made CCleaner too slow and didn't find all files I wanted to delete (recursion was not working well)... many said in this forum that there was no problem with recursion, and that slow speed was because using winapp2.ini. In Version 2.28 all this was fixed... who was right?