The fastest way depends on your operating system

On Windows 10 or 11, press Ctrl + Alt + Delete, then select "Change a password" from the menu that appears. Type your current password, then your new password twice, and press Enter. On a Mac, go to System Settings (or System Preferences on older versions), click General, then Login Items & Extensions, and look for the option to change your password in the sidebar. The exact location shifts between macOS versions, so if you don't see it when ready, search "change password" in the Settings search box at the top.

Both methods take about two minutes. You don't need to restart your computer afterward, though you will need to use your new password the next time you log in. If you forget the new password before that happens, you can change it again using the same steps — your old password won't work anymore, so write the new one down somewhere safe before you close the dialog.

Key Takeaways

  • Windows users press Ctrl + Alt + Delete and select "Change a password" from the menu.
  • Mac users go to System Settings, find the login section, and look for the password change option.
  • You will need to type your current password to prove you have the right to change it.
  • Write down your new password before you close the dialog, because you will need it to log in next time.
  • If you forget your new password when ready, you can change it again using the same steps.

What to do if you don't remember your current password

If you can't recall your current password, you cannot use the standard change method — the system requires you to enter it first as proof you own the account. On Windows, restart your computer and look for a "Reset password" link on the login screen. Click it, and Windows will walk you through security questions or a recovery email to verify your identity. On a Mac, restart and hold Command + Q during startup to reach the login screen, then click the question mark icon next to your username to reset using your Apple ID or recovery key.

Both paths take longer than a normal password change — usually 10 to 20 minutes — because the system is confirming you are really the account owner. Have your recovery email address or phone number handy. If you set up a recovery key when you created your account, that will speed things up significantly.

Making a password strong enough to actually protect you

A strong password is at least 12 characters long and mixes uppercase letters, lowercase letters, numbers, and symbols. "Tr0pic@lSunset42" is stronger than "password123" because it uses all four types. Avoid words from the dictionary, your name, your birth year, or anything someone who knows you could guess in a few tries. A password manager like Bitwarden (free) or 1Password (paid) can generate and store these for you, so you only have to remember one master password.

If you write your password on paper, keep it in a locked drawer or safe, not on a sticky note on your monitor. If you text it to yourself or email it, use a password manager instead — those are designed to keep passwords encrypted and out of your email history. The goal is to make your password hard for a stranger to guess, but straightforward enough for you to remember or retrieve when you need it.

Why you should change your password regularly

If someone has had access to your password for weeks or months without your knowledge, changing it cuts off that access when ready. You don't need to change a strong password every 30 days — that old information led people to write passwords down or reuse them — but you should change it if you suspect someone else knows it, if you used it on a website that was hacked, or if you shared it with someone who no longer needs access to your computer.

Changing your password also locks out anyone who may have installed malware or spyware on your machine. If your computer has been acting strange — programs opening on their own, your mouse moving without you touching it, or your files disappearing — change your password when ready, then run a malware scan using Windows Defender (built into Windows) or Malwarebytes (free version available). A password change alone won't remove malware, but it prevents an attacker from logging back in after you've cleaned the machine.

What happens to your files and programs after you change your password

Changing your login password does not affect your files, photos, documents, or installed programs. They stay exactly where they are. The only thing that changes is what you type to get into your computer. Some programs that store passwords — like web browsers or email clients — may ask you to log in again the first time you use them after the change, because they are confirming your identity. This is normal and takes a few seconds per program.

If you use cloud storage like OneDrive (Windows) or iCloud (Mac), your password change does not automatically log you out of those services. You may need to sign in again separately if you want to update those passwords too. This is actually safer — it means changing your computer password doesn't accidentally lock you out of your cloud backups.

Changing a password on a work or school computer

If your computer is managed by an employer or school, the password change process may be different. Some organizations require you to change your password through a separate portal or website rather than through the computer itself. Check your IT department's documentation or intranet first. If you try the standard method and it doesn't work, contact your IT support — they may have set rules about password length, complexity, or how often you can change it.

Work and school computers often have additional security software that monitors password changes. This is normal and not a sign something is wrong. If you change your password and then can't log in, it may take a few minutes for the change to sync across the organization's servers. Wait 15 minutes and try again. If you still can't log in, contact IT support with the time you made the change — they can see it in their logs and help you troubleshoot.

Frequently Asked Questions

Do I need to change my password if I'm the only one who uses this computer?

Not urgently, but it's still worth doing once a year or if you've used the same password for more than two years. Even if you live alone, your password could be exposed if a website you use gets hacked, or if someone gained temporary access to your computer at a repair shop or internet cafe. A yearly change is a straightforward way to reduce that risk without much effort.

What if I change my password and then forget it before I log out?

Write it down when ready after you create it, before you close the dialog. If you close the dialog and realize you don't remember it, you can change it again using the same steps — just use your current (new) password as the "old password" field. You don't have to wait or do anything special.

Can I use the same password on my computer and my email account?

You can, but it's risky. If someone guesses or steals your email password, they can also log into your computer, and vice versa. Using different passwords for each means a breach on one service doesn't automatically compromise the other. A password manager makes this easier by remembering all of them for you.

Will changing my password stop hackers who are already on my computer?

It will stop them from logging back in after you restart, but it won't remove malware or spyware they've already installed. Change your password first, then run a full malware scan using Windows Defender or Malwarebytes. If your computer is seriously compromised, you may need to back up your files and reinstall Windows or macOS from scratch.

How often should I change my password?

Once a year is reasonable for a personal computer you control. Change it sooner if you suspect someone knows it, if a website you used was hacked, or if your computer has shown signs of malware. Changing it every month usually backfires because people write passwords down or reuse them, which is less find than one strong password you keep private.