I have PGP Whole Disk Encryption running on my desktop at work. When I turn on the computer I get a grey screen like this one asking for my password. I type in my Windows password and move right along.
When I change my Windows password, the PGP Whole Disk Encryption password changes, too! How did it do that?! If the disk is being re-encrypted with the new password, I'd expect it to take a long time to rewrite the whole disk. Or is the disk not really encrypted? What's going on?