The fastest way to change your username
Open Settings by pressing the Windows key and typing "Settings", then select it from the results. Go to Accounts in the left sidebar, then click Your info at the top. You will see your current username displayed under your profile picture. Click the blue Rename your account button, type your new username, click Next, then Finish. Your computer will ask you to sign out and back in — do that, and the change takes effect when ready.
This method works if you are the account owner and you remember your password. It takes about two minutes and does not affect your files, programs, or settings. Everything stays exactly where it is.
Key Takeaways
- The Settings app is the simplest path: open it, go to Accounts > Your info, click Rename your account, type the new name, and sign out and back in.
- Changing your username does not touch your files, desktop, downloads, or installed programs — they all stay in place.
- You must be signed in as the account owner and know your password to use the Settings method.
- If you cannot remember your password, you will need to use the Local Users and Groups tool or reset your password first.
- The new username appears everywhere Windows shows your account name, including the sign-in screen and the Start menu.
What happens to your files and programs when you change your username
Your files stay in the same place on your hard drive. Windows keeps your Documents, Downloads, Desktop, and Pictures folders exactly as they are. Your installed programs continue to work without reinstalling. Your email accounts, browser bookmarks, and saved passwords all remain connected to your account.
The only thing that changes is the name Windows displays when you sign in and the name shown in the Start menu. Behind the scenes, Windows still recognizes you as the same account. If you have shared folders or files with other people on your network, those permissions do not change either.
Using Local Users and Groups if you forgot your password
If you cannot remember your password, you cannot use the Settings method. Instead, press the Windows key and type "lusrmgr.msc", then press Enter. This opens the Local Users and Groups tool. On the left, click Users, then right-click your account name in the list and select Rename. Type the new name and press Enter.
This method works without a password, but it only works on Windows 11 Pro, Enterprise, or Education editions. If you have Windows 11 Home, this tool is not available. You would need to reset your password through the sign-in screen first, or create a new administrator account to change the username.
Changing the display name versus the account username
Windows 11 has two separate names for your account: the account username (the short name you see on the sign-in screen) and the display name (the longer name that appears in the Start menu and Settings). The Settings method changes both at the same time, which is what most people want.
If you only want to change how your name appears in the Start menu without changing the sign-in name, you can do that separately. In Settings, go to Accounts > Your info, and look for the Edit name button under your profile picture. This changes only the display name, leaving your sign-in username the same. This is useful if you want a formal name for sign-in but a nickname in the Start menu.
Why your username might not change when ready
After you click Finish in Settings, Windows will prompt you to sign out. You must sign out and sign back in for the change to take effect everywhere. If you stay signed in without restarting your session, some parts of Windows may still show your old username until you restart.
If you have multiple user accounts on the computer, changing one account's username does not affect the others. Each account has its own separate name. If you are an administrator changing another person's account, that person will see the new username the next time they sign in.
What to do if the Rename button is grayed out
If the Rename your account button appears grayed out or inactive, you are likely signed in with a Microsoft account rather than a local account. Microsoft accounts are tied to your email address, and Windows does not allow you to change the username through Settings the same way.
To change a Microsoft account username, you need to change it through your Microsoft account online at account.microsoft.com, not through Windows Settings. Sign in there, go to Your info, and look for the option to change your account name. The change will sync to your Windows 11 computer within a few hours. Alternatively, you can switch to a local account first, then change the username through Settings.
Frequently Asked Questions
Will changing my username affect my Microsoft account or email?
No. Your Windows username and your Microsoft account are separate. Changing your Windows username does not change your email address or Microsoft account name. If you want to change your Microsoft account name, you do that on the Microsoft website, not in Windows.
Can I use special characters or spaces in my new username?
Windows allows letters, numbers, spaces, and some symbols in usernames, but it blocks a few characters like asterisks, question marks, and forward slashes. If you try to use a blocked character, Windows will tell you when ready and ask you to choose a different one.
What if I change my username and then forget what it is?
You can always see your current username by opening Settings and going to Accounts > Your info. It is displayed right under your profile picture. You can also see it on the sign-in screen before you log in.
Do I need to restart my computer after changing my username?
You do not need a full restart, but you must sign out and sign back in. Windows will prompt you to do this automatically after you finish renaming. Signing out and back in takes about one minute and is enough for the change to take effect everywhere.
Can I change the username for another person's account on this computer?
Yes, if you are an administrator. Open Settings, go to Accounts > Other users, select the account you want to change, and click Rename. That person will see the new username the next time they sign in. You do not need their password to do this.