Lenovo Companion; Windows Recovery Apps; Resetting Your Computer - Lenovo ThinkPad X1 User Manual

Solution: Machine UUID is invalid. Have the computer serviced.
• Message: Fan error
Solution: Cooling fan has failed. Shut down the computer immediately and have the computer serviced.
• Message: Thermal sensing error
Solution: The thermal sensor has a problem. Shut down the computer immediately and have the
computer serviced.
• Message: Error: The non-volatile system UEFI variable storage is nearly full.
Note: This error indicates that the operating system or applications cannot create, modify, or delete data
in the non-volatile system UEFI variable storage due to insufficient storage space after the POST. The
non-volatile system UEFI variable storage is used by the UEFI BIOS and by the operating system or
applications. This error occurs when the operating system or applications store large amounts of data in
the variable storage. All data needed for the POST, such as BIOS setup settings, chipset or platform
configuration data, are stored in a separate UEFI variable storage.
Solution: Enter ThinkPad Setup after the error message is displayed. A dialog asks the user for
confirmation to clean up the storage. If the user selects Yes, all data that were created by the operating
system or applications are deleted except global variables defined by the Unified Extensible Firmware
Interface Specification. If the user selects No, all data is kept, but the operating system or applications will
not be able to create, modify, or delete data in the storage.
If this error happens at a service center, Lenovo-authorized service personnel will clean up the non-volatile
system UEFI variable storage using the above solution.

Lenovo Companion

Use Lenovo Companion
system information collection, security status, and support information, along with hints and tips for
maximum system performance.
For information about accessing Lenovo Companion, see "Discovering Lenovo apps" on page 15.
You also can download the Lenovo Companion app at:
https://shop.lenovo.com/us/en/accessories/software/apps/lenovo-apps/companion/
For additional information, refer to the help system of Lenovo Companion.

Windows recovery apps

The Windows recovery apps enable you to reset your computer or use advanced startup options.
It is recommended that you create a recovery USB drive as early as possible. Store the recovery USB drive
as a backup or replacement for the Windows recovery apps. For more information, see "Creating and using a
recovery USB drive" on page 59.

Resetting your computer

If your computer does not perform well, you might consider resetting your computer. In the resetting
process, you can choose to keep your files or remove them, and then reinstall the Windows operating
system.
To refresh your computer, do the following:
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Tablet / Tablet Gen 2 User Guide
to troubleshoot and resolve tablet problems. The app combines diagnostic tests,