Being in the forensic field, I just have to wonder why the average would feel the need to password protect or encrypt their files.
I;m not saying this about any one of the people who posted, but to me it seems that something illegal might be going on, or maybe they don't want their wife to see his porn collection
Anyway you look at it, if the computer was seized by a certified Forensic examiner, they could find almost every shred of evidence, including deleted file, slack space, unallocated space.. Also e-mails whether web-based or residing on the hard drive.