I would recommend going back to the last recovery point or a point a few days ago before you started making changes to see if that resolves the issue.
Open System Restore by clicking the Start button. In the search box, type System Restore, and then, in the list of results, click System Restore.* Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation.
Open System Restore by clicking the Start button. In the search box, type System Restore, and then, in the list of results, click System Restore.* Administrator permission required If you're prompted for an administrator password or confirmation, type the password or provide confirmation.