• Put Windows 10 DVD in your DVD Drive and boot your system
  • Click next, when Windows Setup Dialog box will appear
  • then click on Repair your computer
  • Then Troubleshoot -> Advanced options -> Command Prompt
  • Now search your System Drive letter using DIR Command. Now Suppose your system Drive letter is D.
    • >
  • then type copy d:\windows\system32\narrator.exe d:  press Enter.
  • then type copy d:\windows\system32\cmd.exe d:\windows\system32\narrator.exe press Enter.
  • Now exit the command prompt and restart your system.
  • In login window, Open narrator (when you open narrator, it open command prompt)
  • to reset the login password type net user 'user account name' 'new password' press enter
  • Now your password successfully changed. Login to your new password.