Hello. I have 3 drives in my PC:SSD with UbuntuHDD for downloads etc. - no OSHDD with Windows 8.1 partition & Windows 7 partition & 1 empty partitionWhen 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: 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: The last thing I tried was creating bootable Windows USB > Repair system > Command Prompt:Code:bootrec /fixmbr bootrec /fixboot bootrec /scanos bootrec /rebuildbcdWhile /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?