
Long story short, you might have to sign in to your account again in various apps and you could lose data if that's managed by your organization.

Microsoft will now warn you of the dangers of resetting your PIN. Type the code you received via text, email, or app, and press “Verify”. If you chose to receive a code by mobile number, enter the last four digits of the phone number associated with your account here and click “Send code”. For us, it's a text message, but it could also be an email or from the authenticator app on your phone. If you have two-factor authentication enabled for your account (and you really should) verify your identity via your chosen method. This should be the same as your Microsoft account/Outlook login. You'll be prompted to enter your account password. The Windows 10 log-in screen always displays the “I forgot my PIN” feature above the Sign-in options. If you just want to change it, go to the second tutorial on this page. You should only use this method if you've truly forgotten your PIN. Depending on your account security, you can use your password and a backup phone, email, or authenticator app to verify your identity from the lock screen. Though it can be easier, there's no need to sign in to Windows 10 to reset your PIN. We're going to show you how to remove your Windows 10 PIN and set a new one in just a couple of minutes: Remove and Reset Your Windows 10 PIN from the Login Screen However, you can reset your Windows 10 PIN from your local device. Unfortunately, all this means that if you forgot your PIN, you won't be able to recover it and can't reset it via the web.

This security is often backed up by a hardware TPM chip.

Unlike a password, the Windows 10 PIN isn't transmitted anywhere – it instead unlocks an authentication key, and that's what's sent for authentication. You can have a separate PIN for each device, which in theory makes it better than your Microsoft account password, but also makes it easier to forget. Windows Hello is Microsoft's overarching term for its password-less sign-in options, including biometrics, but also the humble PIN. We're going to guide you through it step-by-step. Microsoft is aware that memory is fallible and has provided a way to remove and reset your Windows 10 PIN. Thankfully, this isn't as big a deal as you might expect. You boot up your PC, only to stare blankly at the log-in screen and realize that somewhere, at some point, you forgot your Windows 10 PIN.
