I have 1TB HD, and on the hard drive I created a partition (488Gb) that is TrueCrypt encrypted device with a hidden volume (200Gb). Mistakenly I re installed windows to that partition and TrueCrypt won't mount the device anymore. I used "Volume Tools-Restore header" and got the device to mount (only the non-hidden volume tho) but I cant view the contents because i'm getting the "Do you want to format?" message followed by an error stating it cant read it. While the volume was mounted with the "Volume Tools-Restore header" tool I ran every single data recovery program to see what I can recover, but I only got maybe 10% of the files that were in there. All of this is telling me is that the data is decrypting windows just isn't able to recognize it.