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I recently restored my windows 10 because of virus. Now i see on lock screen "second user" and i can't log in. I also got no administrator password, so I can't use cmd to access lusrmrg.exe or anything like that. I tried to use my account but it says "password incorrect". Do I have to install windows again?

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1 Answer 1

Reset to default
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There are various methods to reset your password. I have mentioned two of them here:

1. Using Hiren's Boot CD PE Windows 10

If you already have a bootable media of any os, skip to method 2.

  • Download Hiren's Boot CD PE ISO from here.

  • Download Hiren's Boot CD PE ISO Burner from here.

  • Burn the ISO into a flash drive/ DVD drive/ or whatever you want using the tool, instructions are here.

  • Now insert USB into PC, shutdown it.

  • Now boot your pc, press key F12/F11/DEL/INSERT/depending on your PC.

  • Select the media of Hiren's Boot CD PE.

  • Wait until it boots.

  • After it boot, Click on Start Menu

  • Click on All Programs

  • Click on Security Folder.

  • Click on Password/Password Recovery folder.

  • Click on Lazesoft Password Recovery

  • Click Next.

  • Now click on "Administrator" account.

  • Click Next.

  • Click Reset/Unlock.

  • Wait until it shows success then shutdown.

  • Remove the Media and turn it on again.

  • Log in to Administrator account, no password should be required.

  • Click Win+R to open Run, then type "cmd".

  • Type the following: net user YourUsername "" Make sure to replace YourUsername.

  • Now type: net user Administrator * and set a password for Administrator

  • Now Log out from Administrator and login to your account.

  • Now change your password.

Optional: Assign another administrator. Disable Windows built-in administrator by net user administrator /active:no

2. Using Other OS bootable media

This is helpful if you already have a bootable media.

Windows Bootable

  • Boot your pc from it.
  • When it boots, Press SHIFT+F10 to open Command Prompt
  • Now execute the following:
ren C:\Windows\System32\sethc.exe C:\Windows\System32\sethc.exe.BACKUP
copy C:\Windows\System32\cmd.exe C:\Windows\System32\sethc.exe
ren D:\Windows\System32\sethc.exe D:\Windows\System32\sethc.exe.BACKUP
copy D:\Windows\System32\cmd.exe D:\Windows\System32\sethc.exe

Repeat the same for E: and F: is available

  • Now shutdown your PC.
  • Remove the media and boot again.
  • On login screen, Press SHIFT key 5 times.
  • When Command Prompt opens, type: net user YourUserName *. Make sure to replace YourUserName.

Optional: Assign another administrator. Restore sethc from BACKUP.

Linux Bootable

It might not work on all RedHat and SUSE based linux but still works on fedora.

  • Live boot your pc.
  • Open a File Manager.
  • Go to Windows Disk\Windows\System32
  • Rename sethc.exe into sethc.exe.BACKUP
  • Copy cmd.exe and rename it into sethc.exe
  • Now shutdown your PC.
  • Remove the media and boot again.
  • On login screen, Press SHIFT key 5 times.
  • When Command Prompt opens, type: net user YourUserName *. Make sure to replace YourUserName.

Optional: Assign another administrator. Restore sethc from BACKUP.

At last

Which worked for you?

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  • 1
    Why is this downvoted? Very worthy answer +1.
    – FriendlyFire
    Commented Oct 26, 2021 at 9:10
  • Thx, 2-Windows worked for me.
    – tec
    Commented Sep 15, 2023 at 21:03
  • Can also use Utilman.exe. Then, on the logon screen click the accessibility icon and a command prompt will appear.
    – Slogmeister Extraordinaire
    Commented Jan 22 at 18:58

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