Windows 10: Cannot find OS partitions for disk 1

Discus and support Cannot find OS partitions for disk 1 in Windows 10 Gaming to solve the problem; Hello,When i'm tring to change MBR to GPT with this command: mbr2gpt /validate /disk:1 /allowFullOSi'm getting the error: Cannot find OS partitions for... Discussion in 'Windows 10 Gaming' started by שגב צבר, Jan 25, 2023 at 12:37 PM.

  1. Cannot find OS partitions for disk 1


    Hello,When i'm tring to change MBR to GPT with this command: mbr2gpt /validate /disk:1 /allowFullOSi'm getting the error: Cannot find OS partitions for disk 1CMD:https://i.imgur.com/5loje8y.pngsetuperr.log:https://i.imgur.com/uwxEzxT.pngDisk Management:https://i.imgur.com/xKD9ixb.png

    :)
     
    שגב צבר, Jan 25, 2023 at 12:37 PM
    #1

  2. Disk management console view is not up-to-date

    i dont know how to fix your disk management, but i can fix your partition problems...




    open up Command Prompt with admin rights. (Right click, run as admin)


    enter in
    DISKPART
    list disk

    then find the Disk number for your Raid array... lets call it number 7 ( you can tell what disk is what by the total size)
    type in

    Select Disk 7
    List Partition (will give you a list of all the partitions..)
    Select Partition 1 (im assuming you only have 1 partition on Disk 7) repeat this step if you have more partitions.
    ASSIGN


    that should get the array up and running ready to use.


    EDITED.

    any problems, post back ^^


    Still EDITING *Stick Out Tongue Cannot find OS partitions for disk 1 :p

    side question, have you tried restarting the PC?
     
  3. W1zzard Win User
    W7 Hard drive partition issue

    to get rid of that 100 meg windows partition that setup creates for you on a new install on a blank hdd:

    - press shift+f10 when on the partition management screen in setup <-- this opens a command prompt
    - diskpart <-- start the windows command line partition management tool
    - list disk <--- list the installed hdds in this computer for the next step
    - select disk 0 <- might have to replace 0 with the number of the correct disk
    - clean <-- this will erase all data on the disk you selected one step up- dont use the wrong disk!
    - create partition primary <- creates a primary partition taking up all space on the drive, adjust the command if necessary
    - exit, exit to exit diskpart and the command prompt
    - click refresh in partition manager and select your newly created partition and install to that
     
  4. AnaBura Win User

    Cannot find OS partitions for disk 1

    Installing WIn10 on machine with no OS. Issues with partition creation

    Hello,

    I have a Lenovo 5-15ARH05. It came with no OS installed. When I try to create a partition it simply won't show. If I manually create a partition, and follow the required steps (below), it will delete some file that came from manufacturer.
    Is that safe?

    "This partition might contain files or applications from your computer manufacturer..."

    1. list disk (and make note of the disk number to install Windows to)
    2. select disk=0 (where disk 0 is your destination drive, so be careful, all information on this drive will be removed)
    3. clean
    4. convert mbr
    5. create partition primary size=xxx (where xxx – is the size of new partition)
    6. select partition=1
    7. active
    8. format fs=ntfs quick
    9. assign
    10. exit
     
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Cannot find OS partitions for disk 1

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