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I have entire drive encrypted by TrueCrypt. What is sad, I forgot my password since I changed it to more complex one.
I have Rescue Disc created with old password which I remember.
Unfortunately, I'm not able to use it.
When Rescue Disk menu appears, I select 3 for Restore key data (volume header), then I type my password and then program ask me to confirm if I want to modify drive 0. I press y. From this point nothing happens. I'm not getting any confirmation for over an hour. It looks like program is not doing anything.
How can I decrypt my drive?

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Format it, and restore from the backups that you regularly make? – Zoredache Feb 10 at 19:38
I could do that but this would cause me to lose some of my data. – tamikami Feb 10 at 19:41
Sounds like you learned a valuable lesson to backup more often then – EBGreen Feb 10 at 19:51
Ok, I'm going to brute-force my password :P. It's just 3 new characters compared to the old one. – tamikami Feb 10 at 19:52
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The whole purpose of Truecrypt is so NO ONE can get your data without the password, this includes YOU. Hell no there is no secret way to de-crypt it, if there was it would not be the best encryption technology on the planet and NO ONE would use it. What I would do, make an Image of the hard drive, maybe two. Do this before attempting anything else, now you have an exact copy or two of the drive, this way you can try some things on the hard drive if you think there is corruption or something other than not having the correct password. – Moab Feb 11 at 2:09
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You may have better luck booting the drive on a different hardware setup or approaching the task from a different direction.

Certain BIOSes prevent TrueCrypt from functioning properly (or, rather, TrueCrypt authors do not have the resources to make TrueCrypt function properly on all BIOSes). So a couple of things to try:

  • Try moving the disk into a different computer;
  • Try booting it in a virtual machine (e.g. VmWare Workstation) that permits booting off real hard drives.
  • Boot another operating system, install TrueCrypt on it, and then train Volume Tools onto your encrypted partition to restore the header from either internal volume copy or external header backup.
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