I have an old HP pavilion laptop lying around still -it died a few months ago, but the hard drive is fine. I had it fully encrypted with true crypt (pre-boot authentication).

Recently I've purchased a hard drive enclosure. It arrived in the post today and I transferred the HDD from the laptop into the enclosure today. Upon trying to mount it, Windows tells me that I need to format it. I tried accessing it from truecrypt without pre-boot authentication but it claims my password is wrong (note that my password has a UK keyboard character in it - not sure if this is a factor).

So far my attempts to access the data have failed.I'm unsure what else I could try considering I'm certain the password is correct. Sadly I do not have my rescue disk.