Chapter 4. Related Service Information; Reset Or Restore Windows; Passwords; Power-On Password - Lenovo 20YG00CAIX Hardware Maintenance Manual

Chapter 4. Related service information

This chapter presents following information:
• "Reset or restore Windows" on page 31
• "Passwords" on page 31
• "Power management" on page 34
• "Symptom-to-FRU index" on page 35
Service Web site: When the latest maintenance diskette and the system program service diskette become
available, they will be posted on

Reset or restore Windows

To reset or restore Windows, refer to the information below：
• Use Lenovo recovery options.
1. Go to
https://support.lenovo.com/HowToCreateLenovoRecovery
2. Follow the on-screen instructions.
• Use Window recovery options.
1. Go to
https://pcsupport.lenovo.com
2. Detect your computer or manually select your computer model.
3. Click Diagnostics ➙ Operating system Diagnostics and then follow the on-screen instructions.

Passwords

As many as four passwords might be needed for a ThinkPad notebook computer: the power-on password,
the NVMe password, the supervisor password, and the system management password.
If any of these passwords has been set, a prompt for it will be displayed on the screen whenever the
computer is turned on. The computer does not start until the password is entered.
Note: If only a supervisor password is set, the password prompt will not be displayed when the operating
system is started.

Power-on password

A power-on password protects the system from being powered on by an unauthorized person. The
password must be entered before an operating system can be started. For instructions on how to remove the
power-on password, see "How to remove the power-on password" on page 33.

NVMe password

The NVMe password prevents unauthorized access to the data on the storage drive. When an NVMe
password is set, you are prompted to type a correct password each time you try to access the storage drive.
• Single Password
When a Single NVMe password is set, the user must enter the user NVMe password to access files and
applications on the storage drive.
• Dual Password (User + Admin)
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