What changing your user name actually does
Your user name in Windows 11 is the account label that appears on your login screen and at the top right of your taskbar. Changing it does not affect your files, passwords, or anything installed on your computer — it only changes the display name. If you share a computer with others, each person has their own user account with their own user name, and changing yours does not touch theirs.
Windows 11 offers two ways to change your user name depending on which type of account you have. A local account is one you created directly on this computer. A Microsoft account is one tied to an email address and syncs your settings across devices. The steps differ slightly, but both take about five minutes.
Key Takeaways
- Changing your user name does not affect your files, passwords, or installed programs — only the display label on your account.
- Local accounts are changed through Settings, while Microsoft accounts are changed through your Microsoft account online.
- You must be logged in as an administrator to change any user name on the computer.
- After you change your user name, it appears when ready on the login screen and taskbar the next time you restart.
How to change a local account user name
Open the Start menu and type Settings, then click the Settings app. On the left side, click Accounts, then click Your info at the top of the list. You will see your current user name displayed under "Account settings".
Click the blue button labeled Rename your account. A text box will appear with your current name highlighted. Delete the old name and type the new one. The new name can be up to 20 characters and can include spaces and numbers, but not symbols like @ or #. Click Next, then Finish. Your computer will ask you to sign out and back in for the change to take effect — you can do this now or wait until later.
How to change a Microsoft account user name
If your account is tied to an email address (you see an email address instead of a local name on your login screen), you have a Microsoft account. Changing the display name for a Microsoft account happens online, not in Windows Settings.
Open any web browser and go to account.microsoft.com. Sign in with your email and password. Click Your info on the left side. Under "Manage your Microsoft account", click Edit name. You will see fields for your first name and last name. Change either or both, then click Save. The new name will appear on your Windows login screen and taskbar within a few minutes — you do not need to restart.
What happens if you do not have administrator rights
If you try to change your user name and Windows tells you that you do not have permission, your account is not set as an administrator. You will need someone with administrator rights on the computer to change it for you, or to give your account administrator rights first.
Ask the administrator to open Settings, go to Accounts, then Other users. They should click your account, then click Change account type, and set it to Administrator. After that, you can change your own user name using the steps above.
Changing the user name for someone else on your computer
If you are the administrator and need to change another person's user name, open Settings and go to Accounts, then Other users. Click the account you want to change. For a local account, click Rename and follow the same steps as above. For a Microsoft account, you cannot change it from this screen — that person must change it themselves through account.microsoft.com, or you can create a new local account for them.
Keep in mind that changing someone else's user name does not affect their files or password. They will still log in the same way, but the name displayed on the login screen and in Settings will be different. Let them know about the change so they are not confused when they next restart their computer.
Why your user name might not change
If you click Rename and nothing happens, or you get an error message, the most common cause is that you are not signed in as an administrator. Close Settings completely and try again, making sure you are logged into the account you want to change.
If you are changing a Microsoft account and the name does not update after several minutes, try signing out of Windows completely and signing back in. Sometimes the change takes longer to sync across Microsoft's servers, especially if you have multiple devices using the same account. If the problem persists after an hour, sign into account.microsoft.com directly to confirm the change was saved there.
The difference between user name and password
Your user name is what you see on the login screen — it identifies which account you are. Your password is the secret code you type to prove you own that account. Changing your user name does not change your password, and you will still use the same password to log in after the change. If you need to change your password instead, that is a separate process done through Settings or your Microsoft account.
Some people confuse their user name with their email address, especially if they have a Microsoft account. Your email is what you use to sign in, but your user name is the display name Windows shows. You can change the display name without changing your email address.
Frequently Asked Questions
Will changing my user name delete my files or programs?
No. Your files, installed programs, and all your settings stay exactly where they are. Only the display name changes. You will still see all your documents, photos, and installed software after the change.
Can I use special characters or emoji in my user name?
Local account names cannot include symbols like @, #, !, or emoji. You can use letters, numbers, spaces, hyphens, and underscores. Microsoft account display names are more flexible and may accept some special characters, but it is safest to stick with letters and numbers.
What if I change my user name and then forget what it is?
Your user name appears on the Windows login screen, so you can always see it there. If you need to find it in Settings, go to Accounts and click Your info — it is displayed at the top of the page.
Do I need to restart my computer after changing my user name?
For local accounts, Windows asks you to sign out and back in, which you can do when ready or delay. For Microsoft accounts, the change syncs automatically and you do not need to restart. Restarting is never required, but it does not hurt.
Can I change my user name back to what it was before?
Yes. Follow the same steps and type your old name back in. There is no limit to how many times you can change it, and Windows keeps no record of previous names.