2. Connect the recovery USB drive to the computer.
3. Turn on or restart the computer. When the logo screen is displayed, press F12. The Boot Menu window
opens.
4. Select the recovery USB drive as the boot device.
5. Click
Troubleshoot
to display optional recovery solutions.
6. Select a recovery solution as desired. Then, follow the on-screen instructions to complete the process.
Install Windows 10 and drivers
This section provides instructions on installing a Windows 10 operating system and device drivers.
Install a Windows 10 operating system
Microsoft constantly makes updates to the Windows 10 operating system. Before installing a particular
Windows 10 version, check the compatibility list for the Windows version. For details, go to
support.lenovo.com/us/en/solutions/windows-support
Attention:
• It is recommended that you update your operating system through official channels. Any unofficial update
might cause security risks.
• The process of installing a new operating system deletes all the data on your internal storage drive,
including the data stored in a hidden folder.
• For computer models that are installed with hybrid solid-state drive (with Intel Optane memory), ensure
that you do not install the operating system into Optane memory.
1. If you are using the Windows BitLocker Drive Encryption feature and your computer has a Trusted
Platform Module, ensure that you have disabled the feature.
2. Ensure that the security chip is set to
Active
.
a. Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
b. Select
Security
➙
Security Chip
and press Enter. The
Security Chip
submenu opens.
c. Ensure that the security chip for TPM 2.0 is set to
Active
.
d. Press F10 to save the settings and exit.
3. For computer models that are installed with hybrid solid-state drive (with Intel Optane memory), enter
the UEFI BIOS menu and select
Config
➙
Storage
➙
Controller mode
. Ensure that
RST mode
is
selected.
4. Connect the drive that contains the operating system installation program to the computer.
5. Restart the computer. When the logo screen is displayed, press F1 to enter the UEFI BIOS menu.
6. Select
Startup
➙
Boot
to display the
Boot Priority Order
submenu.
7. Select the drive that contains the operating system installation program, for example,
USB HDD
. Then,
press Esc.
Attention:
After you change the startup sequence, ensure that you select the correct device during a
copy, a save, or a format operation. If you select the wrong device, the data on that device might be
erased or overwritten.
8. Select
Restart
and ensure that
OS Optimized Defaults
is enabled. Then, press F10 to save the settings
and exit.
9. Follow the on-screen instructions to install the device drivers and necessary programs.
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L490/L590 User Guide
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