Lenovo ThinkPad 1 Gen Z16 User Manual page 48

Reset certificate
The enrolled certificate cannot be disabled. You can reset or remove it:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Enter the BIOS menu with the certificate or skip the certification authentication process.
3. Select Security ➙ Reset Certificate.
4. Follow the on-screen instructions to enter the reset code provided by IT admin.
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Z13 Gen 1 and Z16 Gen 1 User Guide