HELP! Quick Format 3TB drive's 746GB (split to 2TB and 746GB)-Partition info GONE

[777funk]

In the process of moving my dual boot (XP and Ubuntu 12.04) to a new HDD, I had backed up all my documents on an internal 3TB drive that Acronis had split for Windows XP into 2TB NTFS (where I had my backup data) and the rest was showing as an unformated 746GB in Win Disc Manager. I decided to quick format the missing 746GB (not the 2TB I was using) and now I can't access the drive (my original 2TB is also not showing).

I didn't ask Windows to touch the 2TB partition so what could have happened? Can GParted build back my original partitions?

This drive migration is turning out to be a huge bummer! I hope I haven't just lost my backup.

 

[ronintexas]

http://windowssecrets.com/forums/showthread.php/158611-3TB-s-Partitioned-As-NTFS-With-MBR-Out-There

There may be some hope here.....the 746GB partition may be lost - not sure....

 

[issy2401]

you need to use command prompt to change the drive from MBR to GPT ....its MBR at the moment that is why it is split with 2TB and 746 GB when you change it it will go to 3TB's and appear as one drive...not two partitions

Tutorial:
http://www.sevenforums.com/tutorials/26193-convert-mbr-disk-gpt-disk.html

 

[777funk]

Thanks for that. Will the important data that I had saved on the 2TB be gone if I do this?

 

[777funk]

Ok to be continued in a new more specific thread.

http://www.tomshardware.com/answers/id-2170601/testdisk-lists-bunch-nonsense-partitions-real-partition.html