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Windows 7: Accidentally converted bitlocker C: drive to dynamic partition

11 May 2017   #1
fuqueue

Windows 7 Ultimate x64
 
 
Accidentally converted bitlocker C: drive to dynamic partition

I'm fudging around in DISKPART, and I accidentally converted my c: drive to dynamic.

What can I do? Shouldn't it be possible to backup the partition tables and filesystem index, prior to having to delete the dynamic and create a basic disk? Is this possible? Quick format should leave the data intact, but I'm aiming to recover 100.0% of my filesystem here

The fun part is, it's bitlocker encrypted.

Any ideas?


My System SpecsSystem Spec
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11 May 2017   #2
mjf

Windows 7x64 Home Premium SP1
 
 

I'm not familiar with bit locker encryption. If you are using an MBR boot then you can backup the MBR using for example
http://www.misec.net/products/mbr-backup/
Your partition table is in the MBR. Look MBR up in Wikipedia.
Then you could try this tutorial which may solve your problem quickly
Convert a Dynamic Disk to a Basic Disk
I can't see how a computer can boot with an encrypted MBR so you might be ok using the steps 2 or 3 of option One.
My System SpecsSystem Spec
12 May 2017   #3
fuqueue

Windows 7 Ultimate x64
 
 

Awesome. I've actually been up all night working on this

Other than that, I've been trying to take complete disk image, but e.g. Windows Backup (full image) fails because of bad sectors or something on the SSD.

lol as I'm writing this I tried MBR backup, and it looks like it might be too late! I don't see the characteristic "-FVE-FS-" prefix, and there's some text I see in all that hex:

"Invalid partition table. Error loading operating system.Missing operationg system..."

lol fml

Sooo... One great option would be to boot off a live usb, delete the dynamic volume, which should automatically revert to basic/primary, and re-create the partitions - WITHOUT a quick format or any format - just have a raw disk in the right partition locations/sizes (I think it's500MB at beginning, rest is C: - need to double check the exact size of that). I should be able to do a diskpart recover or repair-bde command

This is going to be fun... I've got my hex editor handy, and some live CDs... About ready to pull the trigger on this!
My System SpecsSystem Spec
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12 May 2017   #4
fuqueue

Windows 7 Ultimate x64
 
 

Not sure if this is a result of the conversion to dynamic, but I actually have 4 partitions on the system disk:

Part # Type Size Offset
-----------------------------------------
Part 3 Dynamic 992KB 31KB
Part 1 Dynamic 450MB 1024KB
Part 2 Dynamic 238GB 451MB
Part 4 Dynamic 344KB 238GB

Kinda funny how they're all out of order like that
My System SpecsSystem Spec
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 Accidentally converted bitlocker C: drive to dynamic partition




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