Bitlocker key requested when a USB drive is left inserted at boot

Posted on 2014-08-29
Last Modified: 2014-09-01

I have a new Dell M3800 laptop (with Windows 8.1 Update 1) that has a TPM chip.

I have enabled bitlocker - and it boots fine when there is no USB stick inserted at boot.

for some reason, if I leave a USB stick inserted, at boot I am asked to enter the bitlocker key.

is there any way to stop this happening?


Question by:jackbenson
    LVL 8

    Accepted Solution

    please check if this usb stick is a workspace usb stick. I mean is it a special one with the possibility to have more than one partition on it. If Yes then check your boot prior list.

    Is it a normal one check if the stick is bitlocked if yes then its normal

    Check your bitlocker options about removable devices and chanche this option.
    LVL 1

    Author Comment

    (1) I have used disk part - and tested 2 USB keys - each only have 1 partition. (one of the USB is a read only USB key that came with the Dell laptop with Windows 8.1 install files on). Is there a way to test if its a Workspace USB?

    (2) bit locker is not enabled on the USB keys

    (3) I found this article: and I set Policies\Administrative Templates\Windows Components/BitLocker Drive Encryption/Removable Data Drives - "Control use of BitLocker on removable drives" = Disabled

    I then stopped getting the problem.

    thanks for your help.
    LVL 1

    Author Closing Comment

    after applying the bot the computer would boot without needing the bitlocker key even when a USB drive was connected
    LVL 52

    Expert Comment

    Hmm, there is no connection between that policy and your problem. I wonder what was going and I think it will return.
    LVL 1

    Author Comment

    it seems ok so far

    I do not know it this would make a difference - but I have partitioned the hard drive and have 2 instances of windows 8.1 installed. each of the boot drives are encrypted with a separate bitlocker

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