Chapter 4. Related Service Information; Reset Or Restore Windows; Passwords; Power-On Password - Lenovo ThinkPad X13 Yoga Gen 4 Hardware Maintenance Manual
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Chapter 4. Related service information
This chapter presents following information:
• "Reset or restore Windows" on page 27
• "Passwords" on page 27
• "Power management" on page 30
• "Symptom-to-FRU index" on page 31
Service Web site:
When the latest maintenance diskette and the system program service diskette become available, they will
be posted on:
https://support.lenovo.com
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
You can set a power-on password, supervisor password, system management password, or NVMe
password in UEFI BIOS to prevent unauthorized access to your computer.
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 turned on by an unauthorized person. The password
must be entered before the 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 29.
NVMe passwords
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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