My windows computer did an update and restarted last Friday and at that time dropbox was asking me to sign in. When I signed in all my files are gone. It is like a new account. I had just synced a file on Thursday and now it is gone. How do I get this file back. I desperately need it. I thought maybe I had used the wrong email but the other email that I would have used doesn't seem to be an account with dropbox. So I have the correct email address for the account. I can't seem to get any help from dropbox. This is unbelievable!