The fastest way to change your login username

You can change your Windows 11 login username through Settings in about two minutes. Open Settings, go to Accounts, select Your info, and click Rename your account. Type the new name you want, click Next, then Finish. The change takes effect the next time you sign in.

This method works for local accounts — the kind that exist only on your computer. If you sign in with a Microsoft account (the kind linked to Outlook, OneDrive, or Xbox), the process is different and happens online instead.

The new username appears on your login screen, in File Explorer, and anywhere else Windows displays your account name. Files you already own stay yours; nothing gets deleted or moved.

Key Takeaways

  • Local account usernames change in Settings under Accounts > Your info > Rename your account, and the change shows on your login screen when ready after you restart.
  • Microsoft account usernames cannot be changed in Windows itself — you must change them through your Microsoft account settings online at account.microsoft.com.
  • Changing your username does not affect your files, passwords, or permissions; you keep access to everything you owned before.
  • If you forget your new username, you can see it on the login screen or in Settings under Accounts > Your info.

Step-by-step for a local account

Start by opening Settings. Press the Windows key and type Settings, then press Enter. You can also right-click the Start button and select Settings from the menu.

Once Settings opens, click Accounts in the left sidebar. Then click Your info at the top of the right panel. You will see your current username displayed under your account picture.

Click the button labeled Rename your account. A text box appears with your current name highlighted. Delete the old name and type the new one. Usernames can include letters, numbers, spaces, and some symbols, but Windows does not allow certain characters like asterisks or question marks.

Click Next, then click Finish. Windows confirms the change when ready. You do not need to restart right away, but the new name appears on your login screen the next time you sign out and sign back in.

What happens if you use a Microsoft account

If you sign in with an email address instead of a local username, you have a Microsoft account. The rename process happens online, not in Windows Settings. Go to account.microsoft.com in any web browser and sign in with your Microsoft account password.

Click Your info or Account settings (the exact wording varies). Look for an option to change your display name or profile name. This is what appears on your login screen and in Windows. Make the change there, save it, and sign out of Windows completely, then sign back in to see the new name on your login screen.

Your Microsoft account email address is separate from your display name. Changing your display name does not change your email or password. If you want to change your email address itself, that is a different process and requires additional verification steps through Microsoft's website.

Why your username might not change

If you click Rename your account and nothing happens, you may not have permission to change it. This occurs most often on work or school computers where an administrator has locked down account settings. Ask your IT department or system administrator to make the change for you.

Another reason the rename button might be missing: you are signed in with a Microsoft account, not a local account. In that case, the button does not appear in Windows Settings. You must change it through account.microsoft.com instead, as described above.

If you see an error message like "The specified account already exists," Windows thinks another account on your computer already has that name. Choose a different name and try again. Account names must be unique on the same computer.

What does not change when you rename your account

Your password stays the same. Renaming your account does not reset it or require you to create a new one. You sign in the same way you always have.

Your files and folders stay where they are. Windows keeps your Documents, Downloads, Desktop, and all other personal folders. Shortcuts and file permissions do not break. Programs you installed continue to work.

Your Microsoft account, if you have one, is not affected. Your email address, OneDrive, or Xbox account remain linked to your computer. Only the display name on your login screen changes.

Changing the username on a different account

If you need to rename someone else's account on your computer, you must be signed in as an administrator. Open Settings, go to Accounts, then click Other people instead of Your info. You will see a list of other accounts on the computer.

Click the account you want to rename, then click Rename. Type the new name and click Next, then Finish. The change takes effect the next time that person signs in.

If you do not see a Rename button, you do not have administrator rights on this computer. Only an administrator can rename accounts. If you are the only person who uses the computer, you are the administrator.

Frequently Asked Questions

Can I change my username without restarting Windows?

The change takes effect when ready in Settings, but your login screen and File Explorer do not show the new name until you sign out and sign back in. You do not need a full restart, just a sign-out.

What if I change my username and forget what it is?

You can see your current username in Settings under Accounts > Your info. It also appears on your login screen above the password box. If you are already signed in, press Ctrl+Alt+Delete and look at the username shown in the bottom right corner.

Does changing my username affect my Microsoft account or email?

No. Your Microsoft account email and password stay the same. Only the display name that appears on your login screen changes. If you want to change your actual Microsoft email address, that requires a separate process on account.microsoft.com.

Can I use special characters in my new username?

Windows allows letters, numbers, spaces, and some symbols in usernames. It does not allow asterisks (*), question marks (?), quotation marks ("), forward slashes (/), or backslashes (\). If you try to use one of these, Windows shows an error and asks you to choose a different character.

What if my computer is part of a work network?

Work or school computers often have restrictions set by an administrator. You may not see the rename option at all, or you may get a message saying the setting is managed by your organization. Contact your IT department to request a username change.