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Someone changed my Windows 7 Admin pw... what can I do?

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Several helpful pointers are already in this thread from , , , and . The single most important thing before trying any reset or replacement procedure is to preserve the data on the disk — many “quick” fixes can destroy encrypted keys or make recovery much harder.

A short, safe triage you can do now (no risky changes):

  • Verify whether the machine shows any alternate admin account at the logon screen or exposes an Administrator account when booting into Safe Mode (F8). If you can sign in with any administrative user, use Control Panel → User Accounts to create a new admin or reset the problem account from there.
  • If the drive might be encrypted (BitLocker or EFS), stop. Locate any BitLocker recovery key or EFS/certificate backups (printed key, USB file, Active Directory or company IT). If those keys are missing, offline fixes can leave encrypted files unreadable.
  • If you cannot sign in, make a full disk image first. Remove the drive and attach it to another computer as a secondary disk (SATA/USB adapter). Work from the copy, not the original.

How to recover files from the attached disk (typical, non-encrypted data):

  1. Mount the drive on a working Windows PC.
  2. If access is blocked by permissions, run an elevated prompt and take ownership, then grant administrators full control. Example:
    takeown /f E:\Users\LockedUser /r /d Y
icacls E:\Users\LockedUser /grant Administrators:F /t
  3. Copy Documents, Desktop, Pictures and any application data you need to a safe location.

If the data is critical and you can’t find recovery keys, stop and consult a professional — imaging first preserves options. If you just want to regain Windows access after securing a backup, proceed with an offline reset method or a fresh install, understanding encrypted files may be lost. After recovery, create a second admin account, keep recovery keys/backups off-system, and maintain regular backups to avoid this situation.

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Member Avatar for JorgeM

If you have no password reset disk, according to Microsoft, you are out of luck and would have to wipe the disk and reinstall.

There is an unsupported method... If you do a search, there are plenty of Rescue tools (some free and some paid) online that you can use to boot off of a DVD or USB key to access the local account manager on the Windows box and reset the password. These tools are basically Linux live type of instances where you are basically booting to a version of linux with a bunch of tools at your disposal. AGain, you do this at your own risk. Its not supported by Microsoft.

Edited by JorgeM
Member Avatar for gerbil

I always wonder in these cases whether the OP is the legitimate owner of the login... but this stuff is all over the web, and the real owner would likely prefer to have his system whole and workable, if indeed pryed into. A sys in someone- else's hands is a lost system. So... here goes:
Jorge is quite circumspect when it comes to issues delving deep into the heart of a system, and probably quite rightly (I suspect that he is a sysadmin).
But it's your system, your risk, so I shall tell you what works for me and W7 (Pro). Just be aware that if you employ Windows EFS file encryption then at some time you WILL need to recall your password to access encrypted files.
However, I have used this password reset disk on XP and W7 to no detriment.
http://pogostick.net/~pnh/ntpasswd/bootdisk.html is the official site to download from. I have used vsn 110511 (that is the release date as well as the name; it just works, so I have not bothered to update). There is a later version on the page.
Download, burn the iso or install to USB. Boot from that drive; mostly the answers are the default, but read the questions! If you enter your account name when requested in the edit section, then case is important.
Advice is to clear, and not to change the password with the software. Save the edit and restart.

Member Avatar for brook.ad.9

do u have another account if u do go to it and open run(window+r) and type lusrmgr.msc when it opens a new window go to users &right click on what u want and say "SET PASSWORD ".it will not ask u about the old password.

Member Avatar for christo201

Just a few days ago I've used PCUnlocker Live CD to remove the password on an old windows XP computer, it's possible that this would also work for windows 7.

Member Avatar for Slavi

You can boot in cmd and change the pw

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