Reset Windows 10 offline user password

If you forgot your Windows 10 Offline user password you can reset the password by using a windows 10 installation USB stick and some simple hacks.

Good to know is that all the users encrypted saved passwords being reseted so you going to be needed to login again on all applications.

Start with setup a Windows 10 installation USB-memorystick so you can boot on it.

Boot on the USB and when the first prompt for the Windows installation shows, where you select langauge and keyboard layout and time and currcency format press SHIFT + F10 to open a command prompt.

Now we need to replace utilman.exe with cmd.exe, before you do this, you should make acopy of utilman.exe so that you can restore it later. Note that you can only restore this file if you boot again from the Windows DVD. Windows 10 is usually installed on drive D: if you boot from a DVD. You can verify this with “dir d:\windows\system32\utilman.exe.” If the system can’t find utilman.exe, try other drive letters.

move d:\windows\system32\utilman.exe d:\windows\system32\utilman.exe.bak
copy d:\windows\system32\cmd.exe d:\windows\system32\utilman.exe
 
After you replaced utilman.exe successfully, you can restart your computer by type:
 
wpeutil reboot
 
When you get to the Windows 10 sign in page, click the Utility Manager icon and the Commpand Prompt opens.
 
You can now add reset your account password with the below command:
 
net user <username> <password>
 
After run the above command you can now close the command prompt and login on your account with the new password.
 
Notice that resetting a password with this command doesn’t work with a Microsoft account. The only way to reset a Microsoft account password is through the online forms.

How to make a bootable Windows installtion USB stick

After some searching i find there is some commands that are differents between how people make there own windows installation usb stick, so i taked the one i got to work and write it here.

Start with put in a USB stick to the computer then you should open a command prompt as administrator.

When you have the command prompt  you follow the steps below:

  • DISKPART
  • LIST DISK
    • Find your usb stick in the list
  • SELECT DISK 1
    • Replace DISK 1 with the number your usb stick has
  • CLEAN
  • CREATE PARTITION PRIMARY
  • SELECT PARTITION 1
  • ACTIVE
  • FORMAT FS=NTFS QUICK
  • ASSIGN
  • EXIT

Don´t close the command prompt.

Mount the ISO or put in your DVD disc so its comming up in “This computer” and remember the drive letter on it and on your USB stick.

Write in your command prompt:

  • G:
    • Where G: is your drive letter of your DVD-Rom
  • CD BOOT
  • BOOTSECT.EXE /NT60 H:
    • Where H: is the drive letter on the USB stick)

Now you have a bootable USB stick, now you have to copy the windows installation files.

  • xcopy /h /E /s G:\ H:\
Now you have your own bootable USB stick with your windows installation, now you can restart the computer you like to install it on and setup the BIOS/UEFI to boot from the USB stick.
This is original taken from a tutorial for Windows 7 but i have personally used this tutorial for all kind of Windows versions (8, 8.1, 10, Windows Server 2012, 2016).