Help?

So my computer decided it hates me.  Or something like that.  I purchased University Life from ea.com when it was $5 and have been having some problems since then.  I installed it, but since then whenever I try to load my game it says "_ is not installed correctly. Please reinstall or uninstall" or something like that.  It doesn't tell me which game though.  SO I uninstalled all of the expansion packs and my base game, hoping to reinstall and have that fixed.  After battling with my computer to uninstall everything (it kept telling me there were expansion packs installed, even though there weren't) I reinstalled base game, seasons and apartment (the three I had nearest to me) and tried to load, hoping it was fixed.  I tried to load, and got that same message. I about cried.  I spent a couple hours trying to get it uninstalled alone.  Does anyone have any advice for me?  Any help would be appreciated :) I googled my issue and found nothing...so I figured someone out here would know!