Your Windows username is the name you use to sign in to your computer

Your Windows account username is the text you type into the sign-in screen when you turn on your computer or wake it from sleep. It is not your email address, though it might look like one. It is not your computer's name. It is the account identifier that Windows uses to store your files, settings, and permissions on that specific machine.

If you are already signed in, you can find your username in seconds without opening any settings or digging through menus. If you are locked out or cannot remember it, there are still straightforward ways to locate it. The method depends on whether you can access your computer right now.

Key Takeaways

  • Your Windows username appears in the bottom left corner of the Start menu when you click your profile picture, or in Settings under System > About.
  • If you are signed in, you can also find it by opening Command Prompt and typing whoami, which displays your full account name when ready.
  • The username format is usually COMPUTERNAME\username or username@domain.com depending on whether your computer is part of a work network.
  • If you cannot sign in, restart your computer and look at the sign-in screen — your username may appear below the password field or in a list of recent accounts.

Check the Start menu if you are already signed in

The fastest way to see your username is to open the Start menu and look at the top left corner. Click the circular profile picture or icon at the top of the Start menu. A small panel will appear showing your account name, email address, and a few quick options. Your Windows username is displayed there in full.

This method works on Windows 10 and Windows 11. The profile picture is always in the same spot, and clicking it takes less than five seconds. If you do not see a profile picture, your account may be a local account without a profile image set — in that case, the username will still appear when you click that area.

Use Settings to find your full account details

Open the Settings app by pressing the Windows key and typing "Settings," then press Enter. Navigate to System in the left sidebar, then scroll down and click About. On the right side of the screen, look for the section labeled Device name and User name. Your Windows username will be listed there.

This location also shows your device name, which is different from your username. The device name is what your computer is called on a network. Your username is what identifies you as the person using that device. Both pieces of information appear on this same page, so you can see them side by side.

Open Command Prompt to see your username when ready

Press the Windows key and type "Command Prompt," then press Enter. In the black window that opens, type whoami and press Enter. Your full account name will appear on the next line. This is the most direct method and works even if your Settings app is not responding.

The output will show your username in the format COMPUTERNAME\username if you have a local account, or domain\username if your computer is connected to a work network. Either way, the text after the backslash is your actual username. This command is also useful if you need to share your account name with technical support or IT staff.

Check the sign-in screen if you cannot access your account

If you are locked out of your computer or cannot remember your password, restart the machine and look carefully at the sign-in screen. Windows often displays a list of recent accounts with their usernames visible. Your username may appear below a profile picture or next to an email address. Even if you cannot sign in, you can read the username from this screen.

If only one account appears on the sign-in screen and you do not recognize the name, that is still your Windows username — it may straightforward be formatted differently than you expected. Write down exactly what you see, including any backslashes or domain names, because this is the precise name you will need to provide to a technician if you need help recovering access.

Understand the difference between username formats

Windows usernames can appear in different formats depending on how your account was set up. A local account username is usually just a single word or phrase, like "Sarah" or "JohnSmith". A Microsoft account username is typically your email address, like "sarah@outlook.com". A domain account on a work computer shows as "DOMAINNAME\username" or "username@company.com".

All three formats are valid Windows usernames. The format does not change what your username is — it only changes how it is displayed. When you sign in, you may be able to use just the short name or the full format, depending on your computer's setup. If you are unsure which type of account you have, the Settings > System > About page will clarify it.

What to do if you still cannot find your username

If none of these methods work, your computer may have a permission or configuration issue. Try restarting your computer and attempting the Command Prompt method again. If that fails, you can also look at your user folder: open File Explorer, click This PC, then C: drive, then Users. The folder names listed there are your account usernames.

If you are on a work computer and cannot locate your username, contact your IT department or help desk. They have access to your account information and can tell you your username when ready. Bring your employee ID or the device name (from Settings > System > About) so they can look it up quickly.

Frequently Asked Questions

Is my Windows username the same as my email address?

Only if you set up a Microsoft account. Local accounts have usernames that are separate from any email address. If you signed in with an email address during setup, your username is that email address. If you created a local account with a name like "Sarah," that is your username instead.

Can I change my Windows username?

Yes, but the process is different for local and Microsoft accounts. For a local account, go to Settings > Accounts > Your info and click "Rename your account." For a Microsoft account, you change your account name through the Microsoft account website, not through Windows Settings. The change may take a few hours to appear on your computer.

Why does my username have a backslash or domain name in it?

That means your computer is connected to a work network or domain. The part before the backslash is the domain or computer name, and the part after is your actual username. You may be able to sign in using just the username part, or you may need to include the full format — ask your IT department which one your workplace uses.

What if I see a username I do not recognize on my sign-in screen?

That account belongs to someone else who has used this computer, or it is a system account created by Windows itself. Do not try to sign in with it. If you are the only person who should have access to this computer, contact your IT support or the person who set it up to understand why that account exists.

Is my username the same as my computer name?

No. Your computer name is what your device is called on a network — you can see it in Settings > System > About under "Device name." Your username is your personal account identifier on that computer. A computer named "OFFICE-PC-5" might have a username like "james.rodriguez" or "jrodriguez@company.com".