Solution to solve the problem of reboot and select when the black screen appears at startup

Many users have experienced a black screen on their computer, and the prompt reboot and select proper boot device or insert boot media in selected boot device appears. What is the cause? It may be that the hard disk interface data cable is loose, or the hard disk may be broken.

Solutions to reboot and select when a black screen appears after booting up

Method 1:

1. Here is the Acer motherboard, take this as Example:

First restart the computer and press del on the keyboard to enter the boot interface. You can see that the original settings are like this, as shown in the picture:

2. This is due to the fact that the secure boot mode verification is turned on, causing the Launch CSM under the boot options to be unchangeable. Grayscale state Never.

3. But when we change the option to disable,

4. The corresponding Launch CSM changes to To be changeable, change never to always

5, F10 to save and restart to enter the system.

Method 2:

1. If method 1 does not work, it may be a hardware problem.

2. It is recommended that you remove the card from the host, clean the hard disk, memory and other data interfaces, and try to plug them in again.

Method 3:

1. If it is not a hardware problem, then it is possible that the wrong hard disk startup item was selected.

2. You can repeat method 1 to enter bios, then modify the first startup item under the "boot" option, change it to "hard disk" and save it.

Method 4:

1. If it still doesn’t work, you need to reinstall the system. Reinstallation can solve 99% of the problems.

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