When I turn on my computer an error message comes up saying "Windows Explorer has encountered an error and needs to close. We are sorry for the inconvenience." When I click don't send, explorer tries to refresh and then the error message comes up again. The same thing happens when I restart my computer. I tried using system restore to go to an earlier date but even after that the error message still comes back up. I really don't want to have to reformat the drive. Please Help!