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Windows Server 2016 Login failed

nycboottnycboott Member
in General

Built a Windows Server 2016 instance on an abandoned PC at home for some critical services. It has been running for weeks and did a reboot today. The problem is that the password is no longer accept. I don't remember if I changed the password. Anyway to unlock the server without reinstall?

Comments

  • plumbergplumberg Veteran

    Try with hirens boot disk

  • ndelaespadandelaespada Member, Host Rep

    https://pogostick.net/~pnh/ntpasswd/

  • feezioxiiifeezioxiii Member, Host Rep
    edited December 2019

    1. Mount a Windows installation ISO (can be downloaded for free: https://www.microsoft.com/en-us/evalcenter/evaluate-windows-server-2016/), on installation screen: Shift + F10 -> CMD will pop up.

    2. Then we will replace Utilman (the little button on bottom-right corner (Next to the network icon) on Windows logon screen) with CMD so we can access CMD even when not logged in and change the password from there:

    d:

cd Windows\System32

ren Utilman.exe Utilman.exe.old

copy cm-d.exe Utilman.exe

    (remove the "-" because Cloudflare won't allow me to lol)

    1. Reboot

    2. On login screen, press the button on the bottom-right corner as mentioned -> CMD window pop up

    3. User CMD to change your user password:

    net user [Your username] [Your new password]

    (for example: net user Administrator Password@123)

    1. Make sure you change the Utilman back in place for security purposes.

    Let me know if you need any help :D

    Thanked by 2kp93 nycboott
  • tridinebandimtridinebandim Member

    test your keyboard layout, if you install windows in english and your keyboard not eng, if your password has non english characters...

  • nycboottnycboott Member

    @tridinebandim said:
    test your keyboard layout, if you install windows in english and your keyboard not eng, if your password has non english characters...

    it is english keyboard when inputting the password. so it has nothing to do with keyboard at least in my case

    Thanked by 1tridinebandim
  • GreenshadeGreenshade Member

    @nycboott said:

    @tridinebandim said:
    test your keyboard layout, if you install windows in english and your keyboard not eng, if your password has non english characters...

    it is english keyboard when inputting the password. so it has nothing to do with keyboard at least in my case

    Well......have you tried hirens boot disk and NT password?As i know they are very powerful at unlocking a locked computer without password,especially NT password,it's the most famous free software for Windows password reset.

  • GreenshadeGreenshade Member
    edited December 2019

    @Greenshade said:

    @nycboott said:

    @tridinebandim said:
    test your keyboard layout, if you install windows in english and your keyboard not eng, if your password has non english characters...

    it is english keyboard when inputting the password. so it has nothing to do with keyboard at least in my case

    Well......have you tried hirens boot disk and NT password?As i know they are very powerful at unlocking a locked computer without password,especially NT password,it's the most famous free software for Windows password reset.

    As well as LCP and Active Password Changer Professiona.
    https://lcp.soft112.com/
    http://password-changer.com/download.htm
    As free software, it's important to know the steps before using them.
    Sharing this with you.
    https://www.tunesbro.com/reset-windows-server-2016-pssword.html
    It's much easier and faster to use.

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