What is the reason why the screen of the computer suddenly goes black

There are several scenarios where a black screen can be on your computer:

1. The newly added hardware equipment is not compatible with the old or loose or other incompatible hardware is inserted;

2. During the computer networking, the Trojan virus was infected and an incompatible driver was installed;

3. The virtual memory set by the computer is insufficient;

4. The hardware settings are overclocked;

Solution: 1. Check and replace incompatible hardware, or use the original accessories;

2. Select the system with the right hardware and reinstall it;

3. The size of the virtual memory is generally set to the remaining space of the hard disk in the boot area is 2-3 times of its physical memory;

4. Reset the normal operation frequency of the hardware.

1. Check the connection between the monitor and the graphics card 2. Check the power supply of the display 3. Check the memory 4. Antivirus 5. Reinstall the graphics card driver 6. Upgrade to If you can be sure that the monitor has not reached its lifespan, then it is possible that the contact between the connector of your monitor and the chassis is not good, go to the repair department to check it, if it is a plug change, at most dozens of dollars.

Enter regedit in the run, press enter, open the registration expression, find the key, local machine software, microsoft windows, nt, currentversion, winlogonotify, wgalogon, delete this key, restart the microcomputer (be sure to restart), open c: windows system32, find after deletion, open the registry again, and delete the above key value once Don't forget to turn off automatic updates hehe, take a look at it, ok.

If you don't have that file, it could be a bad or damaged hardware or dust or a problem with the monitor cable or monitor Check the following one by one

The computer has a lot of dust or moisture that causes poor hardware contact.

Poor contact caused by swinging of the computer during the moving process.

There are compatibility issues between hardware and hardware.

The hardware is damaged or faulty.

There is a problem with the graphics card.

Display issues.

Caused by other boards, such as memory, network cards, etc.

Right-click on the desktop - Properties - Settings - Adjust the resolution to 1024*768 - Advanced - Monitor, and change the refresh rate to 85 or 75

There may also be program errors, viruses, hackers, monitors, compatibility issues, etc., after reinstalling a system, it is still the case, you need to consider the hardware problem.

There are many reasons for memory or capacitors bursting out and so on.

Power management is set up and you're good to go!

Start - "Control Panel" - "Power Options" (If you don't see "Power Options" here, tap "Switch to Classic View" - "Turn off monitor" on the left and select "Never" - "OK".)

If the power indicator is on, there is wind in the cooling fan port, but the display is still black, most of this situation is due to the internal line failure or hardware failure of the notebook.

In this case, it is recommended to use the external monitor of the computer, which is the monitor of the general desktop, connected to the external display interface of the notebook, if the display is normal, the possibility of damage to the motherboard and graphics card is ruled out. If it is abnormal, there is a problem with the motherboard or graphics card.

In addition to excluding non-motherboard and graphics card failures, it is a common LCD screen failure. You can just press the power button to start when you put your ear to the screen frame to listen, if there is a sizzling sound, and then there is no sound, it may be a problem with the high-voltage circuit board, if it has been silent, it may be a problem with the lamp.

Maintenance Method:

1. Do not use it in an unstable environment, such as in the car. This is very harmful to the hard drive, and even the sail will make the hard drive scrapped. The same is true when the device is turned off.

When the power is turned off and needs to be turned on again, it is best to wait for a minute before turning it on. It is best to turn off the laptop for more than 20 seconds and then move the notebook.

2. Do not use it in an environment where the temperature is too high or too low, which has the greatest impact on the LCD and battery, and the low temperature should not be lower than 10 degrees Celsius, and the high temperature should not exceed 30 degrees Celsius.

3. The notebook should be kept away from magnetic materials such as microwave ovens and speakers, which will cause great damage to the hard disk and even make the data of the hard disk disappear. The memory is far away from electronic products such as mobile phones that can generate high-frequency signals.