Can't see files on old HDD after upgrading to SSD

[UberTiger]

My buddy just installed Win 7 on a new SSD and would like to be able to access the data on his old Win 7 install on his HDD.

He switched the mobo to AHCI, installed the SSD, installed Win 7. The old HDD shows up in My Computer but he can't see any files.

Here's a pic of the disk management, any ideas what can be done to enable viewing of the old files?

Thanks

http://i.imgur.com/58kGZ.png

 

[UberTiger]

Cheers guys, it was weird, he ended up doing as you suggested OptimaLnrg, changed bios settings and switched back to his old drive to back up all the data. Went to boot back into the SSD after changing bios settings again and the windows install was corrupt.

Fresh install on the SSD and it booted fine into windows, the old HDD showed up and he could access the files after being prompted about permissions.

All working grand now though by the sounds of it, and he's got a separate backup of his data in case he does eventually have to perform a full format on the old one for any reason.

Thanks