Having checked the updates site on 30/01/10, I noticed that there was a NEW BIOS update to A12, dated 15/01/10. I have received an email from DELL asking for more info, so will supply the Research people with the real files so that they can sort this BIOS issue out ASAP.Ĭurrently it seems that paying extra for Win 7 Ultimate is a waste of money, after all the only reason for having it is to use Bitlocker. The BIOS should be set to switch the USB flash drive on at startup, which would cure the problem. On the 1640, after POST the flash drive is NOT switched on until after Windows has booted, hence the failure. On my other computer, running Vista Ultimate, the flash drive is switched on immediately after POST is read and then switched off as Windows startup starts, the flash drive is then switchedback on later in the boot sequence. The reason the bek file could not be found is obvious when watching the startup sequence.
#Win 7 bitlocker download upgrade#
Verify that you have the correct USB device, that the USB device is pugged into the computer on an active USB port, restart the computer, and then try again.If the problem persists contact the computer manufacturer for BIOS upgrade instructions. The Bitlocker stsrtup key or recocery password could not be found on the USB device. Therefore on the reboot Windows starts immediately and returns an error: As noted the bek file is just that, a file, therefore the BIOS does not actually try to switch the flash drive on at boot. The bek key is stored in RAM for the system to use. For those that have not used Bitlocker, it creates a system drive (s:\) which is used to start the main boot from the c:\ drive. However, the bek file is NOT a boot file just a key to enable decryption on the fly of the main drive. Dell has set the BIOS so that it expects the USB flash drive to be bootable. The system then reboots itself to check that it can read the bek file and this is where the problems start. Bitlocker then saves an encryption key file (45E229C9-A679-4EC0-BE02-1808DB9706FE.bek) to the USB flash drive along with a " BitLocker Recovery Key 3453DE33-261A-4C11-B871-92BBA7EA38EB.txt " file (these file names are those the system would have used and are now redundant). My problem is having set the BIOS to boot from USB, as required to run Bitlocker without having TPM on the machine, then setting Bitlocker to encrypt all drives. The BIOS has been upgraded to A11, which is, I'm told, the latest version. The machine was supplied with Win 7 Ultimate as I need to use Bitlocker. I have just been speaking to a supervisor about a problem with my Studio XPS 1640.
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