Thanks for that idea phono - I hadn't noticed there was an 'undo' in Easy Cleaner. However this only made the situation worse (if thats possible) - the whole screen and mouse freezes completely straight after startup and repeatedly.
Ctrl/alt/del has no effect.
I'll keep trying to get back to the situation I had before the 'undo',in the meantime......
Oddly enough I've just had a similar problem last night. W98SE machine would boot into windows and then hang. I couldn't move the mouse and Ctrl-Alt-Del wouldn't do anything. Problem seemed to be AVG / Zone Alarm i.e. everything loaded but then as it started to load AVG and Zone Alarm it would hang. Uninstalled and reinstalled both and it seemed fine last night booted up a few times in a row no problems.
I had problems which turned out to be related to programs running at start up. Run "msconfig" go to startup and try disabling one at a time the entries that aren't absolutely necessary. You should be able to find a listing of common start up entries. This may help click here