- Boot from the Windows 10 DVD. Make sure that your PC setup is configured to boot from a DVD and that UEFI and Secure Boot are disabled.
Boot from Windows 10 DVD
- Press SHIFT + F10 to open a command prompt.
Open a command prompt with SHIFT + F10
- Replace the file utilman.exe with cmd.exe. Before you do this, you should make a copy 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.
move d:\windows\system32\utilman.exe d:\windows\system32\utilman.exe.bak
copy d:\windows\system32\cmd.exe d:\windows\system32\utilman.exe
Replace utilman.exe with cmd.exe
- After you have replaced utilman.exe successfully, you can remove the DVD and restart your problematic Windows 10 installation:
Reboot Windows 10
- On the Windows 10 sign-in page, click the Utility Manager icon.
Click Utility Manager icon
Since we replaced the Utility Manager with the cmd.exe, a command prompt should open now. Don’t worry about the error message.
Command prompt at sign-in page
- You can now add a new user with the command below. We also have to add the user to the administrator group so that we regain full control of our Windows installation. Replace <username> with the account name of your choice. Note that the account name must not exist on this Windows installation. Don’t let the Windows 10 screen saver distract you.
net user <username> /add
net localgroup administrators <username> /add
Add a new user and adding the user to the administrator group
- Click the screen to make the sign-in page appear again. Your new account should show up, and you can sign in without a password.
Sign in with a new local account
- You can now access the files associated with your Microsoft account in the C:\Users folder.
- If you worked with a local account instead of a Microsoft account, you can reset your password in Computer Management. Right-click the Start button, select Computer Management, and navigate to Local Users and Groups. Right-click your local account and select Set Password.
Reset Windows 10 password
A shorter way to reset the password of a local account is to replace the first command in step 6 with the following command. (In this case, you don’t need to create a new user.)