Win7 computer appears black screen reason summary

　Why is the computer black screen?

One, the computer black screen caused by the hardware

Equipment mismatch, hardware compatibility is not good, hardware damage, voltage is too low or too high, the disk exists bad section bad sector bad cluster, memory failure or capacity, poor hardware, etc. will cause computer black screen.

　Second, the computer caused by the software black screen

Virus interference, poor software compatibility, illegal operation, improper memory management, too many buffers or too little, incorrect CMOS parameters, disk space is too full, software bugs, system systems, and so on. dll dynamic link library file missing, coarse no modification system registry information will cause computer black screen

　Third, the system runs the black screen reason

Virus infection, some files of windows are covered by the corresponding files of software, software conflict, improper operation of users such as delete system files, application software bugs, open on black screen, etc. will also cause computer black screen.

　　Iv. system files are corrupted

Including bootstrapper errors, error actions, registry corruption, and so on can cause computer black screen.

　Five, improper BIOS setup, system resource exhaustion, hardware and software conflict will cause computer black screen.

Win7 system Computer Why is it always black screen?

Why the above computer black screen reason analysis is also suitable for Win7 system computer Why always black screen this problem. However, carefully, the Win7 system is relatively high in hardware requirements, high requirements for the hardware, also means that, if the hardware does not meet the requirements will easily lead to Win7 system computer appears black screen, the same, if the computer cooling performance is not good, but also easy to cause Win7 system computer always black screen phenomenon.