I was trying to install an application from a disc ( I later realised the application was already installed). Up pops a message from Ad Aware to advise me that this application was trying to alter the registry - I clicked an option -obviously the wrong one -because now when I click on a program on my desktop or my programmes I receive a pop up ' windows cannot open this file'. I cannot download, "My computer" does not respond, neither does configuration panel etc I cannot Add/ remove programs. I suspect ad Aware is the culprit.
If I reinstall Windows XP will I lose any of my stuff already installed? Maybe this will not help if it leaves Ad Aware as is
Do not Panic
If anybody has had the same problem who could help me I would be very grateful.