Yes, you can reset your Windows 8 password. In fact, as long as you can closely follow the detailed instructions outlined below, it’s not even that difficult.
The “hack” outlined below is harmless and works very well but it’s not exactly Microsoft-sanctioned. Ideally you’d use a Windows 8 password reset disk to reset your Windows 8 password. Unfortunately, the only way to use one of those is if you had the forethought to create one before forgetting your password! I do recommend you make one as soon as you get back in (see Step 10 below).
Important: The Windows 8 password reset trick below only works if you’re using a local account. If you use an email address to logon to Windows 8 then you’re not using a local account, you’re using a Microsoft account, and you should follow my How To Reset Your Microsoft Account Password tutorial instead.
Some other ways also exist to recover or reset a forgotten Windows 8 password, like using password recovery software. See my Help! I Forgot My Windows 8 Password! for the full list of ideas.
Follow these easy steps to reset your Windows 8 password:
Difficulty: Average
Time Required: Considering that there are several steps involved, it might take up to an hour to reset your Windows 8 password.
Applies To: You can reset your Windows 8 password this way no matter what edition of Windows 8 or Windows 8.1 you’re using.
Important: There are six ways to access the ASO menu, all described in the link above, but some (Methods 1, 2, & 3) are only available if you can already get in to Windows 8 and/or know your password. I recommend following Method 4, which requires that you have a Windows 8 setup disc or flash drive, or Method 5, which requires that you have, or create, a Windows 8 Recovery Drive. Method 6 works too, if your computer supports it.
copy c:windowssystem32utilman.exe c:
…and then press Enter. You should see a 1 file(s) copied confirmation.
copy c:windowssystem32cmd.exe c:windowssystem32utilman.exe
Answer with Y or Yes to question about the overwrite of the utilman.exe file. You should now see another file copy confirmation.
What?! Command Prompt? That’s right! The changes you made in Step 3 & 4 above replaced the Ease of Access tools with Command Prompt (don’t worry, you’ll reverse these changes in Step 11). Now that you have access to a command line, you can reset your Windows 8 password.
net user myusername mynewpassword
For example, on my computer, I would execute the command like this:
net user "Tim Fisher" a@rdvarksar3skarY
Note: You only need to use double quotes around your username if it happens to have a space in it.
Tip: If you get a The user name could not be found message, execute net user to see the list of Windows 8 users on the computer for reference and then try again with a valid username. A System error 8646 / The system is not authoritative for the specified account… message indicates that you’re using a Microsoft account to login to Windows 8, not a local account. See the Important call-out in the introduction at the top of this page for more on that.
Once Command Prompt is open again, execute this command:
copy c:utilman.exe c:windowssystem32utilman.exe
Confirm the overwriting by answering Yes and then restart your computer.
Note: While there’s no requirement that you reverse these changes, it would be irresponsible of me to suggest that you don’t. What if you need access to Ease of Access from the logon screen someday? Also, please know undoing these changes won’t undo your password change so don’t worry about that.