well really im not big on the deleting and then seeing what happens, so what i would do is if you have the files on both accounts then you should only delete it from one account and then see what happens, and if it doesnt work then there would be no point and if it messes up anything then you should system restore. But please, before you delete anything back up any files that are important to you so in the event that it was a corrupt file and it wasnt supposed to be deleted then you can just format your HardDrive and then upload all your files back onto your computer.Good as new!