Windows 8 and 8.1 Forums


BitLocker - Turn On or Off for OS Drive in Windows 8

  1. #60


    Posts : 22,500
    64-bit Windows 10


    Quote Originally Posted by andcha View Post
    Although it is mentioned everywhere that the system partition should be at least 350 MB, mine even though being 100 MB, there was no prompt to expand the drive to 350 MB and process straight away skipped to step 12. Was there any change 350 MB min requirement?
    Hello Andcha,

    Not that I'm aware of. Please post a screenshot showing all of your Disk Management to see if it may explain what happened.

      My System SpecsSystem Spec

  2. #61


    Posts : 5
    Windows 7


    Here is the screenshot

    Click image for larger version
      My System SpecsSystem Spec

  3. #62


    Posts : 22,500
    64-bit Windows 10


    Interesting, Microsoft either changed it, or this was a fluke. It'll be interesting to see if others see this as well with only a 100 MB System Reserved partition instead of 350 MB.
      My System SpecsSystem Spec

  4. #63


    Posts : 5
    Windows 7


    That too 55 MB is free out of 100.
    Microsoft FAQ was last updated in October 2013, so maybe latest update has changed this requirement.
    My only concern is that nothing goes wrong with my system in future because of this.
      My System SpecsSystem Spec

  5. #64


    Posts : 22,500
    64-bit Windows 10


    It should be fine, but I would recommend to keep a copy of the BitLocker recovery key and startup key in a safe place just in case you may need them in the future.
      My System SpecsSystem Spec

  6. #65


    Posts : 2
    Window 8 Pro (or 8.1)


    Shawn - I just wanna say thanks ! Super professional tutorial, you covered everything. I did lot of h/w s/w through yrs but I'm always wary of doing stuff like this which could potentially lock you out. The only thing I had to read on was TPM maintenance, and I decide to leave it "un-owned" (Im guessing factory initialized to make it easier for the users), hope I'm not going to regret it : )
    And man are you meticulous I thought I was, and I mean in a good way

    A tiny question -but don't feel obliged to answer : )
    What are the things to be aware of once running a bitlocker? I've seen a lot of it like "it may be if you're running a bitlocker" but I'm trying to find some walk-through article link or something.
    E.g. h/w setup, dual-booting, I can't boot from USB then into Win (it needs from HDD), Win 8 to Win 8.1 or upgrades (require turning it off temp) - anything else that pops into mind, or some link you may have handy?

    And thanks again for all the effort

    P.S. just to add my details. I did a TPM Bitlocker on Win8 Pro, I used gpedit to init, and "let Bitlocker" handle the stuff (i.e. no pass - but relying on the user login pass protection). I had 8.1 but factory refreshed to 8 - taking my time on the clean system for a while : )
    Last edited by GagaC; 20 Jul 2015 at 06:45. Reason: addin my setup info for others
      My System SpecsSystem Spec

  7. #66


    Posts : 22,500
    64-bit Windows 10


    Hello Gaga, and welcome to Eight Forums.

    The main thing about BitLocker is to make sure you keep a backup of the recovery key since you will not be able to recover the drive without it if you should ever need to.

    You can boot from a USB with BitLocker enabled. It may be Secure Boot or Fast Boot enabled in your UEFI firmware blocking you from booting from a USB. Temporarily disabling them will allow you to.
      My System SpecsSystem Spec

  8. #67


    Posts : 2
    Window 8 Pro (or 8.1)


    I never lose things, I just can't find them )
    I like your configuration, I'm just about to upgrade my desktop.
    thanks and cheers!
      My System SpecsSystem Spec

  9. #68


    Hi Shawn,

    Been a while since someone posted on this topic, but I am keen on using Bitlocker and giving it a go for its simplicity as an encryption tool.

    My question is, if I encrypt, say a Thumb drive or external HDD using Bitlocker on Windows 10, would I then be able to go on to another computer that is running Windows 7/8.1 with Bitlocker on it and use that/those encrypted drives. Logic tells me yes, but always good to hear others answers and confirmations.
      My System SpecsSystem Spec

  10. #69


    Posts : 22,500
    64-bit Windows 10


    Hello SoiCBoy,

    That's correct. You will be able to connect the removable BitLocker USB on any other Windows 7/8.1/10 PC and be able to access it after entering your BitLocker password.

    BitLocker - Turn On for Removable Data Drives in Windows 8
      My System SpecsSystem Spec

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BitLocker - Turn On or Off for OS Drive in Windows 8
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