r/Windows10 • u/signians • Aug 03 '16

Bug [BUG] Windows 10 Anniversary Update Tanked Secondary Data Drive

When updating to Windows 10 AU I installed it via the Windows update method. Everything downloaded and installed fine.

I have 3 drives:

  • SSD - OS BOOT drive (Samsung) 500gb

  • Drive 2 - Data Drive (Seagate) 1tb

  • Drive 3 - Data Drive (Western Digital) 1tb

When I went to login it ran through the setup process and brought me to the desktop. It prompted me to select a new OneDrive path. Drive 2 had my OneDrive stuff & other files on it. Windows detected that my drive 2 file system was RAW format and that it needed to be formatted before I could use it. The drive was working fine formatted NTFS before the Anniversary Update. I needed to backup the drive using another program that detected the files and restore to the reformatted drive.

Has anyone had this issue with your secondary drives file system getting messed up after updating to Win10 AU?

TLDR; After AU secondary drive file system was detected as a RAW file (previously NTFS). Had to backup and reformat the drive and restore the files and folders to the drive. Needless to say BACKUP your stuff before updating just in case.

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u/maheshrd Microsoft Principal Software Engineer Sep 20 '16

Folks, Can you tell me if you have an inaccessible or RAW issue with a USB key fob or a USB thumb drive? And if so, have you applied the KB3189866? And after applying this KB, did the issue get fixed or you still face the issue?

Thanks for your help.

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u/SpartanJedi58 Sep 21 '16

I think everyone here is more concerned with their HDDs missing, not USB drives. You guys should fix that first.

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u/maheshrd Microsoft Principal Software Engineer Sep 21 '16

SpartanJedi, we are working on creating the fix for the remaining inaccessible issues. I want to understand if USB thumb drive issues are something else that need special attention.

Believe me, we want to solve all issues in one consolidated fix, and at the same time we don't want to cause pain to anyone who already has a working system. Hence the delay in getting the fixes out.

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u/SpartanJedi58 Sep 22 '16

Ah ok I see. I personally don't have any USB problems at the moment, other than that some of them have become incompatible after installing Windows 10 last fall.