Windows 10 update deleted my OS partition and backup partition

Discus and support Windows 10 update deleted my OS partition and backup partition in Windows 10 Support to solve the problem; I have (had?) a laptop with windows 10 from the "free" upgrade. I was away at a funeral for a family member and Win10 did its usual incessant... Discussion in 'Windows 10 Support' started by GSong, Aug 8, 2018.

  1. GSong Win User

    Windows 10 update deleted my OS partition and backup partition


    I have (had?) a laptop with windows 10 from the "free" upgrade. I was away at a funeral for a family member and Win10 did its usual incessant downloading. It downloaded a version update and before the funeral it asked for a re-boot. Why not? I'll begne for several hours. When I returned after 6 hours the computer was locked. I had to hard shut it down.
    when I tried to re-boot it. the sighna that no OS was there appeared. When i returned home, AI had software that indicated thet the partition with the OS and with the backup files were both deleted. A third non-OS partition was untouched.
    I cannot identify my license number because everything is gone.
    Any ideas on how to recover my OS and partitions?
    G

    :)
     
    GSong, Aug 8, 2018
    #1
  2. okidna Win User

    Delete my W10 Partition

    Do you want to safely delete your Windows 10 partition and use only Windows 7?

    If Yes, then boot to your Windows 7, run msconfig, go to "Boot" tab, you will see something like this :


    Windows 10 update deleted my OS partition and backup partition boot-png.png


    Choose "Windows 7" and click "Set as default", then choose "Windows 10" and click "Delete", restart if asked or necessary.
    Now the boot information for Windows 10 has been deleted and you can safely delete your Windows 10 partition (make sure no important files are on the Win10 partition). To delete and extend your partition you can use many partition manager tools.
     
    okidna, Aug 8, 2018
    #2
  3. Scrizz Win User
    Windows 10

    no, you can't go back..
    I suggest creating a backup image of your os drive
     
    Scrizz, Aug 8, 2018
    #3
  4. W1zzard Win User

    Windows 10 update deleted my OS partition and backup partition

    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
     
    W1zzard, Aug 8, 2018
    #4
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Windows 10 update deleted my OS partition and backup partition

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