The black screen occurs because the computer did not boot up properly. CSM is the Compatibility Support Module of the computer motherboard. It supports the normal boot and use of old graphics cards and old systems. Nowadays, it is rare to find systems that do not support new operating systems, and some motherboards have even abandoned the CSM function. If you have special needs, such as installing old operating systems like Windows 7, you will need to enable the CSM function. You need to first disable "Secure Boot" in the BIOS settings, then enable the CSM setting for installation. If you're not familiar with computer system settings, it's recommended to seek remote assistance from our support team.
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