Can't boot into Windows after running BitLocker

Discussion in 'Windows 8 Help and Support' started by PKM1111, Aug 28, 2016.

  1. PKM1111

    PKM1111 New Member

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    Hello. I have 3 drives in my PC:
    • SSD with Ubuntu
    • HDD for downloads etc. - no OS
    • HDD with Windows 8.1 partition & Windows 7 partition & 1 empty partition
    When I start my PC, the GRUB2 menu shows up and I can choose whether I run Ubuntu or Windows. When I choose Ubuntu, it normally starts up. When I choose Windows, I'll get into Windows multi-boot graphical menu and there I can decide between 7 or 8.1. Like this:
    [​IMG]

    However... Today, I decided to encrypt my Windows partitions with BitLocker. So I booted into W8.1 and encrypted W7 partition with no problem - after restarting, I got into GRUB2, selected Windows, got into Windows multi-boot graphical menu, chose W7, entered newly configured BitLocker password, and it booted / started flawlessly.

    Then, in W7, I was going to encrypt W8.1 partition. There was the first problem - when I right-clicked W8.1 partition, there was no "Turn On BitLocker" option. I tried to encrypt it thorugh the Control Panel, but even there was no W8.1 partition shown. Then I tried allowing no TPM devices to be encrypted, but problem still persisted.

    Weird thing was that when I booted into W8.1 and right-clicked its partition, the BitLocker option was there (I do not have a clue why I could encrypt W7 partition from W8.1, but couldn't do it vice-versa??). So I run BitLocker from W8.1, but it was slightly different from before - when I was setting it up for W7, it only asked me for password, but now it said:
    I did not have a good feeling about it from the start, but after small research I realized that I probably don't have any other options, so I risked it. BitLocker began shrinking partition and preparing it. When the process was complete, it prompted me to restart computer.

    I can't boot into neither W8.1 nor W7 since I restarted. After choosing Windows in GRUB2 menu, I'll get into black screen with message
    I checked HDD in Ubuntu. BitLocker cut ~350MB from W8.1 partition and created new partition from it. The new partition also had a boot flag. So I thought maybe if I deleted this newly created BitLocker partition and set the boot flag back to W8.1, everything would go back to normal. It didn't work. And there's another weird thing - in GParted there's a red exclamation mark next to it, and it also can't see how much space is free / used:
    [​IMG]

    The last thing I tried was creating bootable Windows USB > Repair system > Command Prompt:
    Code:
    bootrec /fixmbr
    bootrec /fixboot
    bootrec /scanos
    bootrec /rebuildbcd
    While /fixmbr and /scanos worked, /fixboot is outputting "Element not found." error. /rebuildbcd found just one Windows installation instead of two and after I pressed Y to add at least that one to BCD, there was the same element error. The very last thing I did was running diskpart and activating both Windows partitions. As you can excpect, nothing was solved.

    Can some here know what else should I try to get it back to normal?
     
  2. Neemobeer

    Neemobeer Windows Forum Team
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    It possible that grub doesn't know where the boot entries are for Windows. I would boot into Ubuntu and re-install grub. sudo grub-install /dev/drivename(typically sda)
     
  3. PKM1111

    PKM1111 New Member

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    I did it and now I don't have a Windows option in GRUB at all :( I suppose that bootloader for both Windows 8.1 and 7 is completely broken, so GRUB couldn't find it.
     
  4. Neemobeer

    Neemobeer Windows Forum Team
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    You may need to look in your grub config file and make sure it is configured to detect other OSes it may have been reset after re-installing it. Then run sudo update-grub.
     

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