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Lenovo ThinkCentre M90a User Manual

Lenovo ThinkCentre M90a
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Erase all storage drive data
It is recommended that you erase all storage drive data before recycling a storage drive or the computer.
To erase all storage drive data:
1. Set a hard disk password for the storage drive you will recycle. See “Use passwords” on page 23.
2. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
3. Select Security Hard Disk Password Security Erase HDD Data and press Enter.
4. Select the storage drive you will recycle and press Enter.
5. A message is displayed, prompting you to confirm the operation. Select Yes and press Enter. The
erasing process begins.
Note: During the erasing process, the power button and the keyboard are disabled.
6. After the erasing process is completed, a message is displayed, prompting you to reset the system.
Select Continue.
Note: Depending on the storage drive capacity, the erasing process will take half an hour to three hours.
7. After the resetting process is completed, one of the following will happen:
If the data on the system storage drive is erased, you will be prompted that no operating system is
available.
If the data on the non-system storage drive is erased, the computer restarts automatically.
Use the cover presence switch
The cover presence switch prevents the computer from logging in to the operating system when the
computer cover is not properly installed or closed.
To enable the cover presence switch connector on the system board:
1. Restart the computer. When the logo screen is displayed, press F1 or Fn+F1.
2. Select Security Cover Tamper Detected and press Enter.
3. Select Enabled and press Enter.
4. Press F10 or Fn+F10 to save the changes and exit.
When the cover presence switch connector on the system board is enabled, if the cover presence switch
detects that the computer cover is not correctly installed or closed, an error message will be displayed when
you turn on the computer. To bypass the error message and log in to the operating system:
1. Properly install or close the computer cover.
2. Enter the BIOS menu, save and then exit.
Use Intel BIOS guard
The BIOS guard module cryptographically verifies all the BIOS updates to the system BIOS flash. Therefore,
the malware is blocked from attacking the BIOS.
Use Smart USB Protection
The Smart USB Protection function is a security function that helps prevent data from being copied from the
computer to USB storage devices connected to the computer. You can set the Smart USB Protection
function to one of the following modes:
Disabled (default setting): You can use the USB storage devices without limitation.
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M70a and M90a User Guide

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Lenovo ThinkCentre M90a Specifications

General IconGeneral
BrandLenovo
ModelThinkCentre M90a
CategoryDesktop
LanguageEnglish

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