Windows XP how to restore corrupt windows backup file?

[stephencook]

Few months back, I have taken complete system backup with ntbackup utility as a bkf file, and now when I am trying to restore it on my Windows 8 system it comes up with an error message which is not allowing to restore data from windows backup (bkf) file. Please guide me with the solution to restore corrupt windows backup file.

 

[EvanDavis]

What is the error you are getting ?

 

[stephencook]

Error message says: backup file contains unrecognized data and cannot be used