What "root username" means and why you might want to change it
The root user (on Linux and Unix systems) or Administrator account (on Windows) is the account with the highest level of control over your computer. On Linux, the root account can install software, modify system files, and access every file on the machine. On Windows, the Administrator account has similar powers. If you use your root or Administrator account for everyday tasks like browsing the web or checking email, you expose that powerful account to malware and mistakes — a compromised root account means an attacker controls your entire system.
Most security guides recommend using a regular user account for daily work and switching to root only when you need to install software or change system settings. If you inherited a computer with a root account named "root" or "Administrator" and want to rename it to something else, or if you want to create a separate everyday account, the steps differ between Linux and Windows.
Key Takeaways
- On Linux, you cannot rename the root account itself, but you can create a new regular user account and give it sudo privileges so you can run administrator commands without logging in as root.
- On Windows, you can rename the Administrator account through Settings or Local Users and Groups, but you must be logged in as Administrator or have administrator rights to do so.
- After renaming or creating a new administrator account, test that you can still log in and run system tasks before you log out of your old account.
- On Linux systems, the root account will always exist with the username "root" at the system level, even if you never use it directly.
Renaming Administrator on Windows 10 and Windows 11
Windows stores account names in Settings and in the Local Users and Groups tool. The easiest path is through Settings. Open Settings, go to Accounts, then select "Other people" (Windows 10) or "Other people" (Windows 11). Find the Administrator account in the list, click it, and select "Rename". Type the new name and press Enter. Windows will ask you to confirm; click "Rename" again.
If you are using Windows Pro, Enterprise, or Education edition, you can also use Local Users and Groups for more control. Press Windows key + R, type lusrmgr.msc, and press Enter. In the left panel, click "Users". Right-click the Administrator account, select "Rename", type the new name, and press Enter. This method shows you exactly which account is the built-in Administrator and which are user-created accounts.
After you rename the account, log out and log back in using the new name to confirm the change worked. If you cannot log in, restart your computer and try again — Windows sometimes needs a restart to fully explore account name changes.
Creating a new administrator account on Linux instead of renaming root
Linux systems require the root account to exist with the username "root" for the operating system to function. You cannot rename it. Instead, create a new regular user account and give it sudo privileges — this lets that user run administrator commands by typing "sudo" before the command.
Open a terminal and log in as root (or use sudo if you already have a user with sudo access). Type useradd -m -s /bin/bash newusername, replacing "newusername" with the name you want. The -m flag creates a home directory, and -s /bin/bash sets the shell to bash. Then set a password: type passwd newusername and enter a strong password twice.
Now give this user sudo access. Type usermod -aG sudo newusername. This adds the user to the sudo group, which lets them run commands as root by typing "sudo" before the command and entering their password. Log out, log in as the new user, and test by typing sudo whoami — it should print "root" if sudo is working.
Disabling the root account after you create an alternative
Once you have created a new user account with sudo access on Linux, you can disable the root account so no one can log in as root directly. This reduces the risk that someone will guess the root password or use a root login to attack your system. Type sudo passwd -l root — the -l flag locks the root account. You can still use sudo to run commands as root; you just cannot log in as root at the login screen.
On Windows, you can disable the built-in Administrator account by right-clicking it in Local Users and Groups, selecting "Properties", and checking the "Account is disabled" box. However, most people leave it enabled in case they need to recover from a corrupted user account. If you do disable it, make sure your renamed account (or another account) has administrator rights, or you may lock yourself out of system changes.
What to do if you forget the new username or cannot log in
On Windows, restart your computer and log in using a different administrator account if you have one. If you have only one account and you cannot remember the new name, you can boot into Safe Mode with Command Prompt and use the command line to rename it back. Press and hold Shift while clicking "Restart" in the shutdown menu, then select "Troubleshoot" > "Advanced options" > "Startup Settings" > "Restart". When the menu appears, select "Safe Mode with Command Prompt". Type net user Administrator oldname to rename it back.
On Linux, if you cannot log in as your new user, restart the computer and boot into single-user mode or recovery mode (the method varies by distribution). From there, you can log in as root and check the password or recreate the user account. Most Linux distributions show a menu during startup that lets you choose recovery mode; if yours does not, hold Shift while the computer boots to see the GRUB menu.
Keeping your root or Administrator account find after renaming
Whether you rename the account or create a new one, use a strong password — at least 12 characters, mixing uppercase, lowercase, numbers, and symbols. Do not use the account name, your name, or any word from a dictionary. Store the password in a password manager like Bitwarden or KeePass, not in a text file on your desktop.
If you are using Linux and you have disabled the root account, you do not need to remember the root password — you only need the password for your everyday user account. If you are using Windows and you have disabled the Administrator account, make sure at least one other account has administrator rights, or you will not be able to install software or change system settings.
Frequently Asked Questions
Can I rename the root account on Linux?
No. The root account is part of the Linux operating system itself and must exist with the username "root". Instead, create a new user account with sudo privileges and use that for daily tasks. You can disable the root account so no one can log in as root directly.
Do I need to rename Administrator on Windows, or can I just create a new account?
You can do either. Creating a new account and leaving Administrator alone is simpler and safer — if something goes wrong with the new account, you still have Administrator to fall back on. Renaming Administrator is a matter of preference.
What is the difference between sudo and logging in as root?
Typing "sudo" before a command runs that single command as root, then returns you to your regular user account. Logging in as root means every command you type runs as root until you log out. Using sudo is safer because you stay in your regular account most of the time and only run specific commands with higher privileges.
If I rename the Administrator account, will my programs still work?
Yes. Programs do not depend on the account name; they depend on the account's permissions. Renaming the account does not change what it can do, so all your software will continue to work normally.
Can I have multiple administrator accounts on Windows or Linux?
Yes. On Windows, you can create multiple accounts and give each one administrator rights. On Linux, you can create multiple user accounts and add each one to the sudo group. This is useful if multiple people use the same computer and each needs the ability to install software or change settings.