The fastest way to change your username on Windows 8

Open the Settings charm by pressing Windows key + I, then select Change PC settings at the bottom. Go to Users, select your account, and click Change your name. Type your new username and click Next. Windows will update your account name when ready, though some programs may still show your old name until you restart your computer.

This method works whether you use a local account (stored only on your computer) or a Microsoft account (linked to your email). The steps are the same either way. Your files, programs, and settings stay exactly where they are — only the name displayed on the login screen and in the Start menu changes.

Key Takeaways

  • You can change your Windows 8 username through Settings without restarting, though some programs won't show the new name until you do.
  • The username change affects only the display name, not your files, programs, or account security settings.
  • If you use a Microsoft account, changing the username in Settings does not change your email address or password.
  • Some older programs may continue showing your old username in their own settings until you restart your computer.

What happens to your files and programs when you change your username

Your personal files stay in the same place. Windows stores them in a folder named after your old username (usually C:\Users\[old name]), and that folder name does not change when you update your display name. This means shortcuts, file paths, and program settings that reference your old username will continue to work.

Programs installed on your computer will not break. They continue running under the same account permissions. However, programs that display your username in their interface — like email clients, chat applications, or office software — may show your old name until you restart. Restarting forces these programs to reload your account information from Windows.

Changing your username if you use a Microsoft account

If you sign into Windows with a Microsoft account (your email address), the process is identical to a local account. Press Windows key + I, go to Change PC settings, select Users, and click Change your name. This changes only the display name shown in Windows, not your email address or password.

Your Microsoft account email remains the same. You still sign in with that email address and your password. The username change is purely cosmetic — it affects only what appears on your login screen and in menus. If you want to change your actual Microsoft account email, you would do that through your Microsoft account settings online, which is a separate process.

Using the Control Panel method if Settings does not work

If the Settings charm is not responding or you prefer the older interface, you can change your username through the Control Panel. Press Windows key + R to open the Run dialog, type netplwiz, and press Enter. Select your account from the list and click Properties. In the General tab, you can edit the username field directly.

This method is more reliable on older computers or if Windows Settings is behaving strangely. After you change the name and click OK, you may be asked to restart. Unlike the Settings method, this approach sometimes requires a restart before the change takes effect across all programs.

Why some programs still show your old username

Programs store your username in their own settings files, separate from Windows. When you change your Windows username, these programs do not automatically update their records. Email clients, messaging apps, and office software may continue displaying your old name because they are reading from their own configuration files, not from Windows.

Restarting your computer forces most programs to refresh their account information. If a program still shows your old name after restart, you can usually change it within that program's settings or preferences menu. Look for a Profile, Account, or User section in the program's settings.

What you cannot change with this method

Changing your Windows username does not change your password, your security settings, or your account permissions. If you need to change your password, you do that separately through Settings or by pressing Ctrl + Alt + Delete on the login screen. Your user account control settings, file permissions, and administrator status all remain the same.

If you use a Microsoft account, this method does not change your email address. To change the email associated with your Microsoft account, you must sign into your account at account.microsoft.com and update it there. That change is separate from your Windows username and takes effect across all devices you use with that account.

Frequently Asked Questions

Will changing my username affect my Wi-Fi password or saved networks?

No. Your saved Wi-Fi networks and passwords are stored in Windows, not tied to your username. They will continue to work after you change your name. You do not need to re-enter any network passwords.

Can I change my username back to the old one?

Yes. Follow the same steps through Settings or Control Panel and type your old username. Windows treats it as a new name, so you can change back and forth as often as you want. Your files and settings remain unchanged.

What if I see an error message saying the name is already in use?

Windows does not allow two accounts on the same computer to have the same display name. If you get this error, choose a different name. You can use spaces, numbers, and most special characters, though Windows blocks a few symbols like asterisks and question marks.

Do I need to restart Windows after changing my username?

Not when ready. The change takes effect right away in Windows menus and the login screen. However, restarting ensures that all your programs update their display of your username. If you see your old name in a program, restart your computer and it should update.