I'm running Windows XP Pro 2002 Service Pack 3. My system went down due to some viruses. I received it back from the shop but now I can't get my XP Style back. I only have Windows Classic style as the only option. I checked the file services.msc but everything looks normal there in Themes, it is supposedly running and Service status is Started. I tried stopping it and starting it again, but nothing changes. Do I need to reinstall Windows? If I reinstall Windoes would I have to reinstall all my programs and set up all my settings again?