Windows 10: Lost my Windows license after accidental disk erasing

Discus and support Lost my Windows license after accidental disk erasing in Windows 10 Updates and Activation to solve the problem; Hello, I've used Windows 10 for more than year without any problem. Yesterday I decided to reinstall it beside other OS and, by accident, I erase all... Discussion in 'Windows 10 Updates and Activation' started by Marcus.Vinicius.Santos, Jan 29, 2019.

  1. Lost my Windows license after accidental disk erasing


    Hello,


    I've used Windows 10 for more than year without any problem. Yesterday I decided to reinstall it beside other OS and, by accident, I erase all the disk data - along Windows installation and its license number.


    Is there any chance of recovering it in order to do a fresh install again?


    ps.: I think I don't have the notebook box with the written key anymore, so I thought if I could recover it with my Microsoft account.


    Thanks for the attention,

    :)
     
    Marcus.Vinicius.Santos, Jan 29, 2019
    #1
  2. p_o_s_pc Win User

    Finally! An alternative to eraser...

    it looks much cleaner then the eraser so that is a big step up.
     
    p_o_s_pc, Jan 29, 2019
    #2
  3. NavyLCDR Win User
    Unsupported Disk Layout for UEFI firmware


    Step #5 - in the command window that opens type:

    diskpart
    list disk
    select disk 0 <- make sure disk 0 is the hard drive in question!
    clean <- this will erase the disk selected above - make sure disk 0 is the hard drive you want!
    convert gpt
    exit
    exit
     
    NavyLCDR, Jan 29, 2019
    #3
  4. W1zzard Win User

    Lost my Windows license after accidental disk erasing

    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, Jan 29, 2019
    #4
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Lost my Windows license after accidental disk erasing

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