I use the same PIN for all three of my computers. Microsoft lets you choose how you want to sign in. Check on your computer. What Operating system are you using?
Pin Numbers
Does Microsoft security use require pin numbers in addition to user names and passwords?
If yes, how does a user maintain a current PIN?
Windows for home | Windows 10 | Security and privacy
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Emma1-N 13,700 Reputation points Microsoft External Staff Moderator
2026-10-13T23:34:00.3133333+00:00 Welcome Bob Hardy,
A Windows Hello PIN is separate from your Microsoft account password. It is used to sign in to a particular Windows device, and the PIN is associated with that device.
To maintain or update your PIN in Windows 10, open Settings > Accounts > Sign-in options, select PIN (Windows Hello), and then select Change PIN. You will need to enter your existing PIN before creating a new one.
If you no longer remember the PIN, select I forgot my PIN and follow the prompts to verify your account and create a new PIN.
You can find Microsoft’s instructions here: https://support.microsoft.com/en-us/windows/security/change-or-reset-your-pin-in-windows
Looking forward to your update.