Hi all I am having the "Windows Installer" pop up very frequent. It is windows installer asking to set something which I do not understand something of a syntax lists. The problem appears after I mess up the Environment Variables. I have installed the ACA system restore software and it seem not compatible with my OS. They give instruction on how to divert back to the default folders path. I may make a mistake of it. I am not sure where the default path should be. What should I do to revert it back to the normal path. My OS. XP Pro.SP3. Thanks.