My stupid guy friend came over to do graphics for my photography and signed me out of my Chrome, and signed himself in. So NOW, I have his apps all over, my Chrome looks updated- it has the black tabs now- and even though I signed him out, Chrome looks the same, has his crap all over, he doesn't even know how to fix it, and when I try to sign in it tells me that ALL of our data will merge- NO thank you! He suggested uninstalling and reinstalling it, but do I REALLY need to do that to fix this? Won't I lose MY apps? Pretty angry, I don't want to lose my stuff!!