Some users have a black screen when turning on their computer, and a large section of English appears on the screen. When the first line of English prompts reboot and select proper boot device or insert boot media in selected boot device appear, it means that the computer is If there is a problem with the hard disk, the user can enter the system by changing the computer settings. If the changed settings are invalid, the user needs to check whether the data cable of the hard disk interface is loose and whether the hard disk is damaged.
Method 1:
1. Here is the Acer motherboard, just take This is an 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 three:
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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