Some users of Lenovo Yangtian 3900c reported that, after making the U-Heroes U-disk, they cannot recognize the U-disk after pressing the shortcut key, and cannot start the U-disk. What is going on? In fact, this is the problem of BIOS settings. The following U heroes will teach you how to set the BIOS of Lenovo Yangtian 3900c computer, so that it can use the U disk to boot and reinstall the system. Of course, the following setting method is not limited to Lenovo Yangtian 3900c computer, as long as the BIOS is similar to the picture, you can follow the following operations.
1. Press the shortcut key to enter the BIOS setting, which is generally F12 for Lenovo computers .
2. After entering the BIOS, select Security, check whether the Secure Boot option is turned off on the security page , and set it to Disabled , as shown below:
3. Select the startup page, open the compatibility module (CSM) of the startup page , and set it to Enabled , as shown below:
4. After completing the above operations, press F10 to save and exit, restart the computer, and press the shortcut key again to pop up the boot options window, and you can see the U disk boot options.