How to set the startup disk for Lenovo notebook

1. turn on the computer and press F 12 or Delete to enter the BIOS settings.

2. Enter the settings,

3. Click Security and locate Safe Boot.

4. Close and exit.

5. Find startup, click primary boot sequence, and enter.

6. You can see the startup priority, you can move+or-,and the top is the first startup.

7. Generally speaking, the USB flash drive is started as USB or USB HHD.

8. Some old hardware doesn't support USB boot, such as this one. USB can't boot, so you need to upgrade the BIOS settings. It's done.