That s it when my computer turns on, what s the problem?

Go to the BIOS and reset the boot disk, it looks like it should be the network card boot boot.

Problem analysis: The computer automatically enters the CMOS interface of the motherboard when it is turned on, if you rule out human error to enter (you can press the ESC key to exit), it means that the computer fails to pass the self-test when it is powered on, which is generally a CMOS parameter error or hardware failure. Common phenomena include battery failure, misconfiguration, poor memory or hard disk contact, etc., which need to be investigated one by one.

Solution: 1. Battery failure: cause the computer to call the default parameters of CMOS, if it is inconsistent with the local hardware environment, the computer cannot be started normally. You can purchase a motherboard battery to replace it, then turn on the computer and press the DEL button (F2 or other designated hotkeys for notebooks) to enter the CMOS interface, and reset the correct parameters, and finally press F10 to save and exit the reboot.

2. Configuration error: This situation will also occur due to the manual configuration of CMOS parameters that do not match the local hardware environment. In general, you can press the F1 key to skip the non-fatal error and start the computer directly according to the prompt message on the black background and white text on the screen, or press the del key to enter the CMOS, then press F9 to load the predefined parameters or select Load optimized defaults or load fail-safe defaults, and then press F10 to save and exit the restart.

3. Hardware failure: If the above operations are invalid, it means that there is a problem with the hardware, generally because the memory and the hard disk are in poor contact or the hard disk master boot record is damaged, and the memory or hard disk needs to be reinserted and unplugged, or the hard disk master boot record is repaired or the system is reinstalled or the hard disk is replaced.

The system does not currently detect any hard drives, n a means not applicable, that is, no hard disks are found. Of course, the system does not boot.

It is recommended to check whether the power or data cable of the hard disk is detached. If it doesn't work, change the hard drive and test again.

There are several possibilities:

1: The system is damaged (self-owned or medium-sized virus);

2: The program that starts automatically with the system is corrupted (I am cheap or in the virus);

Solution: 1: Go to safe mode for full anti-virus.

2: Turn off the problematic auto-start program in safe mode, if it is a problem with this program, you can delete or reinstall this program.

3: Special move: Reload the system.

Reinstall or repair the system.