Updated to 1803 via Windows Update - now D: OEM partition is showing

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  1. alexncfc's Avatar
    Posts : 94
    Windows 10 Pro 20H2 (19042) x64
       #1

    Updated to 1803 via Windows Update - now D: OEM partition is showing


    Hello all,

    I've just updated my laptop via Windows Update to 1803 - I suppose I could have waited, but I have working backups stored so I am not that fussed about installing the latest update.

    On first boot the system actually feels a lot faster, smoother, just a better experience. Then I got a notification in the Action Centre of low disk space on Drive D: - which would be fine, but I don't have a D: drive.

    So I looked in Explorer and sure enough I now have a 450MB D: drive with 45MB left. I looked in Disk Management and it looks like it's the OEM or recovery partition. It never showed before, so can't think why it would now.

    This is clearly an issue from installing the 1803 update, but how do I hide the drive again, and also is this likely a deeper problem or nothing to worry about?

    Thanks
    Updated to 1803 via Windows Update - now D: OEM partition is showing-disk1.jpgUpdated to 1803 via Windows Update - now D: OEM partition is showing-disk2.jpg
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  2. Posts : 1,868
    W10 pro x64 20H2 Build 19042.610
       #2

    I think you can hide the drive by simply not giving it a drive letter. Right click the D drive in the disk management console and see if you can remove the letter.

    You could also I think just delete the partition (so its unallocated), again from the disk management console.
      My Computer

  3. AndreTen's Avatar
    Posts : 23,362
    Windows 10 (Pro and Insider Pro)
       #3

    Mooly said:
    I think you can hide the drive by simply not giving it a drive letter. Right click the D drive in the disk management console and see if you can remove the letter.

    You could also I think just delete the partition (so its unallocated), again from the disk management console.
    Just delete the drive letter. Leave the partition, It's recovery partition. Same happened with Insiders 17133 build. MS will probably fix the naming with Cumulative update in the next days. Nothing to worry
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  4. alexncfc's Avatar
    Posts : 94
    Windows 10 Pro 20H2 (19042) x64
    Thread Starter
       #4

    Thanks for the ultra fast responses to this!

    I've had a look at trying to delete the drive letter as you have both suggested, in Disk Management's right click menu. Problem is, when I right click on the D drive, there is no menu like there should be:

    Updated to 1803 via Windows Update - now D: OEM partition is showing-disk3.jpg
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  5. AndreTen's Avatar
    Posts : 23,362
    Windows 10 (Pro and Insider Pro)
       #5

    Give it a restart (or two).
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  6. Brink's Avatar
    Posts : 56,427
    64-bit Windows 10 Pro for Workstations build 21359
       #6

    Hello Alex, :)

    If the above doesn't help, then you might see if you may be able to use Option 2 or 3 below to remove the drive letter.

    Remove Drive Letter in Windows 10 Windows 10 Tutorials
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  7. AndreTen's Avatar
    Posts : 23,362
    Windows 10 (Pro and Insider Pro)
       #7

    Brink said:
    Hello Alex, :)

    If the above doesn't help, then you might see if you may be able to use Option 2 or 3 below to remove the drive letter.

    Remove Drive Letter in Windows 10 Windows 10 Tutorials
    Was just typing the same :)
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  8. Brink's Avatar
    Posts : 56,427
    64-bit Windows 10 Pro for Workstations build 21359
       #8

    Lol
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  9. Yuuyatails's Avatar
    Posts : 7
    Windows 10 Pro build 1903 (64-bit)
       #9

    As soon as I noticed that the OEM partition shown up in the drive list and had assigned to the drive letter, I immediately unassigned the partition and set the partition's attribute to 'hide' via diskpart. So far, it hasn't been show up on reboots.

    This is just the workaround, however, as I'm waiting for Microsoft to fix this minor issue. Yes, I said minor issue, as it was nothing more than an annoyance to some users who notice this.
      My Computer


  10. Posts : 4
    Windows 10 Fall Creators Update
       #10

    Same problem here. I get Drive G:

    No way to remove it, delete it, etc. None of the workarounds work. I do not like having unnecessary drives show up as I also have lots of other things going on. One mistake in drive letter and it can be disastrous for my data or system integrity.

    So silly...
      My Computer


 
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