16MB partition on newly installed non OS drive?


  1. Posts : 8
    Windows 10 Home
       #1

    16MB partition on newly installed non OS drive?


    Does anyone happen to know why Macrium Reflect shows my Crucial MX500 as having a 16MB partition when none of my other drives do with the exception of my OS drive?

    Conversely the partition in question doesn't appear Disk Management.

    Screenshot-2021-04-04-175902 — ImgBB
      My Computer


  2. Posts : 12,429
    Win10 Version 21H2 Pro and Home, Win11 Pro
       #2

    D3SOL4TE said:
    Does anyone happen to know why Macrium Reflect shows my Crucial MX500 as having a 16MB partition when none of my other drives do with the exception of my OS drive?
    Conversely the partition in question doesn't appear Disk Management.
    Screenshot-2021-04-04-175902 — ImgBB
    I probably don't have a solution but would ask if the drive in question was connected in the computer when Windows was installed? If so maybe it is a marker required by Wiindows, a test would be to unplug it then boot the computer just to see if it's required to be there. I did that once some time ago, removed the second or D: drive, couldn't boot and ended up with reinstalling with only the main drive connected.
      My Computers


  3. Posts : 439
    Windows 10
       #3

    D3SOL4TE said:
    Does anyone happen to know why Macrium Reflect shows my Crucial MX500 as having a 16MB partition when none of my other drives do with the exception of my OS drive?

    Conversely the partition in question doesn't appear Disk Management.

    Screenshot-2021-04-04-175902 ImgBB
    MSR or Microsoft Reserved Partition, its standard on GPT disks. Search MSR for more info.
      My Computer


  4. Posts : 17,271
    Windows 11 Pro
       #4

    Correct. MSR partition. Just delete it.
      My Computer


  5. Posts : 8
    Windows 10 Home
    Thread Starter
       #5

    Berton said:
    I probably don't have a solution but would ask if the drive in question was connected in the computer when Windows was installed? If so maybe it is a marker required by Wiindows, a test would be to unplug it then boot the computer just to see if it's required to be there. I did that once some time ago, removed the second or D: drive, couldn't boot and ended up with reinstalling with only the main drive connected.
    No it wasn't connected when Windows was installed as I only just got it a couple of days ago and that aside I always unplug any additional drives when installing Windows.

    Anibor said:
    MSR or Microsoft Reserved Partition, its standard on GPT disks. Search MSR for more info.
    If that's the case (not doubting you) it's just strange it didn't occur with my other drives?
      My Computer


  6. Posts : 3,986
    Windows 7 HP 64 - Windows 10 Pro - Lubuntu
       #6

    To post images, please don't use external links. Post them as attachment.
    How to Upload and Post Screenshots and Files at Ten Forums

    As Navy recommend, delete the partition.
      My Computers


  7. Posts : 439
    Windows 10
       #7

    D3SOL4TE said:
    If that's the case (not doubting you) it's just strange it didn't occur with my other drives?
    It depends on the history of the disk. If you initialize a new disk as GPT, an MSR partition is created. The same if you do a clean install of Windows. If you "convert" an MBR disk to GPT, the process may not create an MSR. If you restore an image, the MSR may be overwritten by another partition.
      My Computer


  8. Posts : 17,271
    Windows 11 Pro
       #8

    The "convert gpt" command in diskpart will create the partition.
      My Computer


  9. Posts : 8
    Windows 10 Home
    Thread Starter
       #9

    Megahertz said:
    To post images, please don't use external links. Post them as attachment.
    How to Upload and Post Screenshots and Files at Ten Forums
    Sorry, I will in future. Thanks everyone for your help.
      My Computer


 

  Related Discussions
Our Sites
Site Links
About Us
Windows 10 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 10" and related materials are trademarks of Microsoft Corp.

Designer Media Ltd
All times are GMT -5. The time now is 15:56.
Find Us




Windows 10 Forums