Sensitive data includes credit card numbers, social security numbers, or FEIN information, for example. In addition, QuickBooks Desktop Pro requires you to enter or create a password for the “Administrator” user before you can restore a QuickBooks company file from a local backup that contains sensitive data. You must be in single-user mode to do this. Doing this lets you repair a corrupted company file in QuickBooks. You can restore a QuickBooks company file from a local backup copy, if you created local backup copies. Restore a QuickBooks Company File from a Local Backup: Overview