To virtually restore the MBR and Partition Table from a saved backup use the following steps:
Insert the floppy disk with the backup record of the MBR
Run Active@ UNERASER for DOS with the following parameter:
A:\>UNERASER.EXE -ignoreMBR=80h
80h in the above example is the name of the hard drive, as displayed by Active@ UNERASER
(!) Note: The MBR and Partition Table will be restored to the state when the backup was created.
All previously-recognized drives and folders will be displayed. Data from deleted files and folders can be recovered to another drive as described above in "Recovering Deleted Data (Commercial Version Only)".
If restoration of the MBR, Partition Table and Boot Sector does not resolve the issue, please try Active@ Partition-Recovery software.