It is recommended that you create a recovery USB drive as early as possible as a backup for the Windows recovery programs. With the recovery USB drive, you can troubleshoot and fix the problems even if the preinstalled Windows recovery programs are damaged. If you did not create a recovery USB drive as a precautionary measure, you can contact Lenovo Customer Support Center and purchase one from Lenovo. For a list of the Lenovo Support phone numbers for your country or region, go to:
https://pcsupport.lenovo.com/supportphonelist
Ensure that your computer is connected to ac power.
Prepare a USB drive with at least 16 GB of storage capacity. The actual USB capacity required depends on the size of the recovery image.
Connect the prepared USB drive to the computer.
Type recovery in the search box. Then, click Create a recovery drive.
Click Yes in the User Account Control window to allow the Recovery Media Creator program to start.
In the Recovery Drive window, follow the on-screen instructions to create a recovery USB drive.
Ensure that your computer is connected to ac power.
Connect the recovery USB drive to the computer.
Turn on or restart the computer. When the logo screen is displayed, press F12. The Boot Menu window opens.
Select the recovery USB drive as the boot device.
Click Troubleshoot to display optional recovery solutions.
Select a recovery solution as desired. Then, follow the on-screen instructions to complete the process.