I took backup of my laptop using windows easy transfer.I installed the new windows 8 and now im trying to restore the backup.

I cant restore my backup as it saying WET couldnt open a file. I tried moving back to win 7 and tried in other windows 7 laptops also i cant restore my data.Any body please help me, it seems like the file is corrupted.Is there any other MIG extractor or reader in which i can retrieve my data (38 gb) as it is very critical. Anybody please help me as im breaking my head for the past 3 days trying almost all the possibilities.

Thanks in Advance