How to fix HP laptop black screen problem?

Reasons for HP laptop black screen:

1.First of all, see whether the power adapter can be energized normally, if so, use a multimeter to check whether the rated voltage is reached, so as to eliminate the adapter fault. Eliminate the power adapter problem, and then use the external monitor of the computer, which is the monitor of the general desktop, to connect to the external display interface of the notebook.

If everything is displayed in order, the possibility of damage to the motherboard and graphics card is basically ruled out. If it is abnormal, there is a problem with the motherboard or graphics card. In addition, loose memory may also cause a black screen at boot.

2.In addition to excluding non-motherboard and graphics card failures, it is a common LCD screen failure. If something is faintly displayed, it means that the LCD screen and cable are not damaged, and it may be that the backlight is not lit.

There are two reasons why the backlight does not light up: the backlight tube burns out or the high-voltage circuit that drives the lamp is damaged. The working principle of the high-voltage circuit board is to convert the low-voltage direct current provided by the motherboard into high-frequency and high-voltage electricity through the switching circuit, and light up the backlight tube.

This point can be just pressed the power button to start when the ear is attached to the screen frame to listen, if there is a sizzling sound, and then there is no sound, it is roughly a problem with the high-voltage circuit board, if it has been silent, it may be a problem with the lamp.

A black screen on a laptop is a common occurrence, especially in older computers or builds.

There are many reasons for the failure of the black screen of the computer, 1. The monitor is damaged.

2. The motherboard is damaged.

3. The graphics card is damaged.

4. Poor contact of the graphics card.

5. The power supply is damaged.

6. CPU damage.

7. Damage to the heat dissipation system, etc.

8. There are also artificially caused by the black screen of the computer.

9. If you are not sure about the specific fault, it is recommended to go to the maintenance center for treatment.

The steps to resolve the problem are as follows:

1.Press "Windows+R" on the keyboard to bring up the run panel (note: the windows key is the one on the computer keyboard between CTRL and ALT with a small window pattern).

2.Enter "explorer".

3.Click "OK" to complete the restoration of the desktop icon and display the hall.

4.Then bring up the run panel and enter "regedit". Yuhong.

5.Click "OK".

6.Enter the registry interface.

7."hkey local machine software, microsoft windowsnt currentversion, winlogon" path.

8.Find and right-click "shell" in the list on the right (or left-click and double-click to go directly to the edit screen).

9.Select Modify

10.Delete the contents of the exe in the "Numerical Data".

11.Then click "OK" and you're done.

1. First recall whether you have adjusted the refresh rate or display resolution, you can press [F8] a few more times when you boot up, and select [Safe Mode] in the system's [Startup Menu Quietly Simple];

2. After selecting the security mode, you can generally enter the system normally, first click the right-click menu on the desktop, select [Screen Resolution], and then you can see [Resolution], and select the resolution of [Recommended] in the drop-down menu; Click [Application] and [OK] below to restart to enter the system;

3. If you can't enter the safe mode, but it can be due to hardware problems, you can disassemble the notebook, take out the memory module and clean up the gold finger;

A black screen on an HP laptop is a common glitch that many users encounter during use. If you are also experiencing the HP laptop black screen, here are a few things you can try to fix the problem.

1.Check the power supply and battery.

First of all, you need to check if the power supply and battery are working properly. If the battery is already drained, you can charge it and restart your computer. If the power supply fails, you can try replacing the power supply or using a different power adapter to fix the problem.

2.Restart your computer.

Sometimes, the black screen can just be a minor glitch and it will be back to normal by restarting the computer. You can press the power key and keep it pressed until your computer turns off. Then press the power button to start the computer and see if it can boot up successfully.

3.Enter Safe Mode.

If you can't start up your computer properly, you can try going into safe mode to determine the cause of the failure. You can press the F8 or Shift+F8 keys on startup and choose to enter safe mode. If you are able to successfully enter safe mode, you can do some diagnostic and repair actions to fix the black screen of your computer.

4.Check for viruses and malware.

Sometimes, malware or viruses can cause your computer to go black. You can use software to scan your computer for viruses and malware. If you don't have software installed, you can install it in Safe Mode**.

5.Check for hardware issues.

If you've ruled out all of the above and your computer still has a black screen, then there may be a hardware failure. You can check your RAM, hard drive, and other hardware devices to see if they're failing. If the hardware fails, you'll need to send your computer in for repair or replacement.

In conclusion, a black screen on an HP laptop is a common glitch, but most of the time it can be fixed with simple methods. If the above methods do not work or you are unsure of how to handle the problem, we recommend that you contact HP Customer Service or a professional technician for further assistance.

1. First recall whether you have adjusted the refresh rate or display resolution, you can press [F8] several times when you boot up, and select [Safe Mode] in the system's [Boot Menu];

2. After selecting the security mode, you can generally enter the system normally, first click the right-click menu on the desktop, select [Screen Resolution], you can see [Resolution] after entering, and select the resolution of [Recommended] in the drop-down menu; Click [Application] and [OK] below to restart to enter the system;

3. If you can't enter the safe mode, it may be due to hardware problems, you can take the notebook apart, take out the memory module and clean up the gold finger;