What changing your account name actually does
Changing your account name updates the name that appears when you log in, on your desktop, and in system menus — but it does not change your username folder or affect your files. On Windows, your account name and your username folder are separate things. On Mac, changing the display name is simpler and affects what other people see when you share files or use screen sharing.
The reason this matters: if you rename your account on Windows, your old username folder (usually C:\Users\OldName) stays as it is. Windows creates a new profile folder with your new name, but your files remain in the old location. You will need to move them manually if you want them in the new folder, or you can leave them where they are and Windows will still find them.
On Mac, the process is more straightforward because the system handles the folder renaming for you in most cases, though the change takes effect only after you log out and back in.
Key Takeaways
- On Windows, your account name and your username folder are separate — renaming one does not automatically rename the other.
- On Mac, you change your display name in System Settings under Users & Groups, and the change takes effect after you log out and back in.
- Changing your account name does not affect your files, passwords, or installed programs — they remain accessible after the change.
- On Windows, if you want your files in a folder matching your new name, you will need to move them manually or create a new profile and transfer them.
How to change your account name on Windows 10 and 11
Open Settings by pressing the Windows key and typing "Settings," then press Enter. Click on "Accounts" in the left sidebar, then select "Your info" at the top. You will see your current account name displayed under your profile picture. Click the "Rename your account" button.
Type your new name in the box that appears and click "Next." Windows will ask you to confirm — click "Finish" and your account name changes when ready. You do not need to restart your computer. The new name appears on your login screen and in the Start menu the next time you open them.
If you do not see a "Rename your account" button, you may be using a Microsoft account instead of a local account. For a Microsoft account, you will need to change your name through your Microsoft account settings online, which then syncs to your computer. Go to account.microsoft.com, sign in, and look for "Your info" or "Edit profile" to change your display name there.
How to change your account name on Mac
Click the Apple menu in the top-left corner and select "System Settings" (or "System Preferences" on older versions). Click "General" in the sidebar, then look for "Users & Groups" or click directly on "Users & Groups" if you see it listed. You may need to click the lock icon in the bottom-left and enter your password to make changes.
Select your account name from the list on the left. You will see a field labeled "Full Name" — this is your display name. Click in that field, delete the current name, type your new name, and press Enter. The change takes effect when ready in most menus, but you may need to log out and log back in for the change to appear everywhere on your system.
If you want to change your short username (the folder name that appears in Finder), that requires a different process. Click "Advanced Options" while your account is selected, but be aware that changing your username folder can cause problems with some programs. It is usually safer to leave the username folder as it is and only change your display name.
What happens to your files and programs after you change your name
Your files do not move or disappear when you change your account name. On Mac, they stay in your home folder and remain accessible. On Windows, your files stay in your old username folder (C:\Users\OldName), and Windows knows how to find them even though your account name has changed.
All your installed programs continue to work normally. Your passwords, saved Wi-Fi networks, and browser history remain intact. The change is purely cosmetic — it affects only what you see on the screen, not how your computer stores or accesses your data.
If you want your Windows files organized in a folder that matches your new account name, you can move them manually. Open File Explorer, navigate to C:\Users\OldName, select the folders you want (Documents, Pictures, Downloads, Desktop), and move them to C:\Users\NewName. Be careful not to move system folders — stick to your personal files.
Changing your account name on a shared computer
If multiple people use the same computer, each person has their own account. Changing one account name does not affect the others. Each person logs in with their own credentials and sees only their own files and settings.
If you are an administrator and want to change someone else's account name, you can do so through Settings on Windows or System Settings on Mac, but you will need administrator access. On Windows, go to Settings > Accounts > Other users, select the account, and click "Rename." On Mac, go to System Settings > General > Users & Groups, click the lock to unlock, select the account, and change the Full Name field.
What to do if you cannot change your account name
On Windows, if you see no rename option, you are likely using a Microsoft account. Microsoft accounts must be renamed through the online account settings at account.microsoft.com, not through your computer. Sign in there, go to "Your info," and look for an option to edit your name. The change syncs to your computer within a few minutes.
On Mac, if the Full Name field is grayed out, click the lock icon in the bottom-left corner of System Settings and enter your password. If you still cannot change it, you may not have administrator access on that account. Ask whoever set up the computer to change it for you, or create a new administrator account.
If you are locked out of your account entirely and cannot remember your password, you will need to use your computer's recovery mode or password reset options. On Windows, use another administrator account to reset the password. On Mac, use Recovery Mode (restart and hold Command+R) to reset your password through the Utilities menu.
Frequently Asked Questions
Will changing my account name affect my email or Microsoft account?
No. Your email address and Microsoft account remain the same. If you are using a Microsoft account to log in, changing your display name on your computer does not change your email address or your account at microsoft.com. You can change your Microsoft account display name separately at account.microsoft.com if you want them to match.
Can I change my account name back to what it was before?
Yes, at any time. Follow the same steps you used to change it the first time. There is no limit to how many times you can rename your account. Your files and programs will not be affected.
What if I have programs that use my old account name?
Most programs do not care what your account name is — they work the same way regardless. Some older programs may reference your username folder path, but Windows and Mac both maintain access to your files even after you rename your account. If a program stops working after you rename your account, reinstalling it usually fixes the problem.
Do I need to restart my computer after changing my account name?
On Windows, no — the change takes effect when ready. On Mac, you may want to log out and log back in to make sure the change appears everywhere, but it is not required. A restart is never necessary just to explore a name change.