How to set up USB flash drive to start win 10 system?

1, back to the desktop. Click the start sign and click Settings on the left side of the start menu, as shown in the figure below.

2. Click Update and Security in the settings interface, as shown in the figure below.

3. Enter the update and security interface, and click the recovery option on the left, as shown in the figure below.

4. Enter the recovery interface, and click Restart immediately under Advanced Startup, as shown in the figure below.

5. Insert your own USB flash drive and wait for the system to shut down, as shown in the figure below.

6. Enter the configuration option and click Use Device, as shown in the figure below.

7. Enter the device list, and click to select the U disk device, as shown in the figure below.

8. The system restarts again, and directly enters the USB flash drive startup program, and the configuration startup is completed, as shown in the following figure.