If you updated your Lenovo laptop and are unable to log in because you don't remember the PIN, you have a few options to regain access:
1. **Use Your Microsoft Account Password**: If your Lenovo laptop is linked to a Microsoft account, you can try using your Microsoft account password as the PIN. In some cases, the PIN might be the same as your account password.
2. **Try Previous PINs or Passwords**: If you have used similar PINs or passwords in the past, try them as they might be the one you set up for your laptop.
3. **Use an Alternate Sign-In Option**: If you have set up other sign-in options like a fingerprint or facial recognition, try using those to log in instead of the PIN.
4. **Reset Your PIN**: If the above options don't work, you can reset your PIN by following these steps:
- On the login screen, click on "I forgot my PIN" or "Reset PIN."
- You will be asked to verify your identity through your Microsoft account password or another authentication method if available.
- Follow the on-screen instructions to reset your PIN.
5. **Recovery Options**: If you are unable to reset your PIN, you might need to use recovery options to gain access to your laptop. This could involve using a recovery USB drive or accessing advanced recovery options during boot-up.
The exact steps and options might vary depending on your laptop model and the version of Windows you are using. If you are still unable to log in or reset your PIN, it's recommended to reach out to Lenovo support or Microsoft support for further assistance. They can provide specific guidance based on your laptop model and operating system version.