My brother had a same problem, he rolled back to baseline snapshot and lost more documents.
He trying unistall CTM, when CTM attention him about low free space, and he deleting all snapshots expect baseline snapshot.
When he reboot PC - progress bar is not processed for a few hours, and he was reboot PC.
After reboot, CTM display errors such as "Too many bad sectors". He press Esc to cancel, but about 24% PC was freezing after message - recover files? It may be a long time.
Windows not starting, i entered to disk with Win PE, and when i tryed open folder "Documents and settings" i've got a error - Access denied. With programm NTFS access i opened this folder, but files was be old.
Then i entered in MSDART cmd - bcdboot.exe /fixmbr - and Windows showed me a startup logo and gone to reboot.
I fixed this with standart recovery tools on Windows installation disk.
And now i trying recovery files used before select baseline snapshot.
Sorry for my bad english.