With the upgrading of digital equipment, notebooks have become the mainstream trend, and the cumulative number of users is increasing, which can not avoid the exposed problems, such as the phenomenon that many users turn on their notebooks with black screens. How to solve this situation? Below Xiaobai gives you a detailed solution.

First, the notebook computer boot black screen analysis

Hardware causes a black screen:

1. Is the laptop battery dead?

2. The cable contact of the monitor is poor.

3. The graphics card has poor contact.

4. Poor memory contact

5. There is something wrong with the power supply.

6. The display screen is broken

The system causes a black screen:

The loss of system files leads to a black screen. Generally, there are a few lines of English on the top left of the screen, or the bar flashes, or windows fails to start, or windows cannot verify the digital signature of this file.

Second, the black screen solution

Hardware causes black screen solution:

1. First check whether the power supply or battery is charged. If possible, use a multimeter to check whether the rated voltage is reached, so as to eliminate the fault of the adapter. Then see if the battery is dead.

2. Then, check whether the cable of the monitor is in poor contact. Generally, the display screen is completely unresponsive after being plugged in normally. This situation generally requires strong hands-on ability and professional toolbox. If it can't be repaired by itself, it is recommended that the computer shop solve it.

3, the graphics card or memory card is not in good contact. Generally, try to remove the graphics card or memory card, rub the metal place with an eraser, and then plug it in, which can generally be solved.

4. Excluding the above reasons, it is likely that the display screen is broken. You can try to put your ear close to the edge of the screen after turning on the phone to see if there is any hissing sound, and then there is no sound. Generally, it is the problem of high-voltage circuit board. If it remains silent, there may be something wrong with the light.

If the above cannot be repaired by itself, it is recommended to send the notebook to a physical store for repair.

The system causes a black screen solution:

The system is broken, so the black screen can't enter the system. The general solution is to reinstall the system. Please refer to the following solution steps:

Step 1: Prepare tools before installation

1. Prepare a USB flash drive (above 4G), a computer with normal Internet access, and search and download Xiaobai tools.

PS: Please make sure that there are at least two computer drive letters before installation, and make sure that the data on the U disk is backed up.

Step 2: Make a USB flash drive startup tool.

1. First, plug the 4G USB flash drive into the ordinary computer. It is recommended to back up the data on the U disk in advance, as shown in the following figure:

2. Before making tools, you need more than two disks on the computer, as shown in the following figure:

3. Then exit the antivirus software on the computer to avoid production failure, as shown in the following figure:

4. Double-click to open the white widget and wait for the loading to complete, as shown in the figure below:

5. The white gadget that appears next selects the production system option, as shown in the following figure:

6. Then click the Start Production button, as shown below:

7. Select the system to be installed, and then click Start Production, as shown below:

8. Start downloading the system image package and make the U disk tool. Do not operate the computer during this period, as shown in the following figure:

9. After waiting for more than half an hour, I found that the production was successful, and then click Cancel, as shown below:

Step 3: Reinstall the system.

1. Unplug the USB flash drive and plug it into the Acer computer that needs to be reinstalled. Refer to the following startup hotkey, as shown below:

2. Restart the computer and immediately press the startup hotkey (fast intermittent press) F 12, as shown in the following figure:

3. Then the startup menu appears, select the USB option, move up and down through the direction keys, and press Enter to select, as shown in the figure below:

4. A small white PE system appears immediately. We use the keyboard direction keys to select the first item to start win 10x64PE, as shown in the following figure:

5. After the loading is completed, select the system win7 to be installed, and then click the Install button, as shown in the following figure:

6. Then click the Start Installation button, as shown below:

7. After the installation is completed, click to restart the computer immediately, as shown below:

8. After the computer restarts, start installing the program and its related settings, and wait patiently for more than ten minutes, as shown below:

9. During this period, the computer will be restarted several times, and it can be used normally after entering the system, as shown in the following figure: