Windows update caused c: partition to appear as RAW

chupo_crochupo_cro Member Posts: 13

Tinkerer

edited April 3 in Members Lounge
I've read many times Windows 10 update could cause a partition to disappear and that was exactly what happened to me yesterday after I clicked on Shutdown at the Windows login screen.

After that there was a boot loop at Predator screen. I used boot USB to boot Windows PE and my c: partition was showing as d:, RAW, 0 bytes. My d: disk was showing as c: and is working without errors. I can see EFI and recovery partitions on the primary drive, only c: partition is showing as RAW.

I used Alt+F10 to boot into the recovery console but Startup recovery couldn't solve the problem. I tried Uninstall quality update option but that didn't solve the problem either. Uninstall feature update option reported a problem. Using cmd dir couldn't list the files od c: partition because of "There isn't a file system" error.

Acronis Disk Director recognizes the partition as c:, Healthy, NTFS, boot and can show all the files which might mean the GPT table should be rebuilt.

I am suspecting there was some task schedulled to run at the startup but Shutdow stopped the task before it finished all the work.

Is there a way to rebuild the GPT table according to the partition contents?

The links I've read so far:
https://superuser.com/questions/1170115/partition-file-system-changed-to-raw-after-windows-10-update
https://www.partitionwizard.com/partitionmagic/convert-raw-to-ntfs.html
https://www.partitionwizard.com/partitionmagic/hard-disk-became-raw.html
https://answers.microsoft.com/en-us/windows/forum/all/raw-drive-after-windows-10-feature-20h2-update/86155bf5-c085-481f-a415-e752547b8905
https://answers.microsoft.com/en-us/windows/forum/windows_10-update/data-partition-inaccessible-after-windows-10-pro/dd32ce5f-83f7-4f70-8caa-cadc92bcd3cb
https://techcommunity.microsoft.com/t5/windows-servicing/upgrading-windows-10-pro-to-20h2-corrupts-data-partition/m-p/2018305
https://winaero.com/microsoft-is-fixing-a-bug-that-very-easily-corrupts-ntfs/
https://www.reddit.com/r/sysadmin/comments/5gnad7/windows_partition_became_raw/
https://www.ghacks.net/2020/12/19/running-chkdsk-on-windows-10-20h2-may-damage-the-file-system-and-cause-blue-screens/
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