Okay it’s on, I ran the preparation tool fine, rebooted, turned Bitlocker on (the TPM was already on via the BIOS). The TPM ownership password was set during TPM initialization, which I might change later, but there’s not much point now. I set the PIN I’ll use to boot up the computer, and copied the Recovery Key to a USB drive. The Recovery Key is useful if the computer has problems and I need to move the drive to a new machine.
All in all, so far it’s smooth. The drive is currently encrypting which takes a while – at about 11% one hour later. I have a 7200 rpm 200 GB drive. Even unallocated space gets encrypted but they’ve optimized performance in that area – http://blogs.technet.com/bitlocker/
