Why does Lenovo laptop Win8 not turn on, black screen, can t do anything?

The black screen of a notebook can generally be divided into two categories: hardware and software.

One. Black screen caused by software:

Sometimes after installing some software or hardware drivers, you find that after restarting, the computer can't enter the system and the screen has been black, which is the black screen of the laptop caused by the software. If it is due to software that causes a black screen, then to:

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For example, we can restart the machine and press it a few more times when it is turned on.

F8 button to bring up the system's boot options menu. Once the System Boot Options menu comes out, select Enter Safe Mode. If we can enter the safe mode normally, we can delete the software or driver installed before the black screen in the safe mode.

Then restart the machine and see if the laptop can fix the black screen issue.

Two. Hardware-induced laptop black screen:

1.On laptops, there is a sensor switch, when we close the screen, the display will automatically turn off, thus saving power consumption. Some laptops are mechanically touched, such as when the screen is closed.

It's like a beginning to disconnect the power of the display. So at this time, we can check whether this switch on the notebook is aging and can't pop up, resulting in a black screen in the notebook. If you have this physical switch on your computer, it's usually at the bottom of the display, near the top of the keyboard.

2.The cause of static electricity, sometimes static electricity will cause the circuit of the notebook motherboard to be abnormal, resulting in no reaction on the screen after turning on the power supply. We can try to unplug the laptop's battery and power supply, and then press the power start of the laptop a few more times to let the machine release static electricity.

Then connect the power supply, turn it on, and see if it can solve the fault.

3.Loose memory or hardware failure of the memory. There are several major components of a notebook computer, including:

CPU, motherboard, memory, graphics card. These parts are indispensable, as long as one of them has a problem, it will cause the laptop to not function properly, the most common is that the boot does not respond. In general, the probability of CPU and motherboard failure is relatively small, and it is more common for the laptop to fail to boot due to loose memory.

At this time, first remove the battery and power supply of the notebook, if it is not difficult to remove the computer, you can open the back cover of the notebook by yourself and reinsert the memory. After plugging in the memory, power it on again, start the machine, and see if you can solve the fault.

4.The notebook's LCD component is faulty. There are some notebooks that are a little older, and this may be the case.

VGA display interface, and then switch the display to on the laptop.

VGA external display. If you can switch to an external monitor, it means that there is a big problem with the display part.

5.The graphics card hardware is faulty, and the graphics card is responsible for the source of all the display output of the computer, so there is a problem with it, and there is no display on the screen. If the graphics card is broken, we can't solve it ourselves, and we can only find the computer's after-sales solution.

If the notebook is within the warranty period, it can be taken for free inspection and repair.

Just press and hold the shutdown button for a long time.,Win8 vulnerabilities are more serious.,Generally win7's better.。 If you don't change it, you need to add a few more software to fill the loopholes.

A black screen is a common phenomenon, especially on older computers or builds. There are many reasons for the failure of a computer's black screen, such as a damaged monitor, a damaged motherboard, a damaged graphics card, a bad contact of the graphics card, a damaged power supply, a damaged CPU, and a high temperature of components. The following is the solution to the black screen of Lenovo laptop win8 system that I have collected and sorted out, welcome to read.

Solution:

1. Hardware: Immediately choose to enter the BIOS to see if the screen will be black, if the screen is also black, the hardware is faulty.

2. System file configuration:

1. First of all, when the black screen is started and there is only the mouse, call up the task manager through CTRL+SFHift+ESC;

2. Then click "Details" on the left side of the task manager to display the full panel, select the file of task management--- run the new task;

3. Then select "Browse" in the lower right corner of the dialog box that appears, and the file browsing window will pop up;

4. At this time, you can see "This Computer" on the left side in the file browsing window, right-click on it, and select "Manage";

5. The "Computer Management" window pops up, select the local user and group user on the left, and the local user will be listed on the right;

6. Create a new administrator account, then log out, log in with the new username, and everything will be normal.

3. Graphics card driver: The black screen may be caused by the incompatibility of the graphics card driver, and you need to uninstall the original graphics card driver and install the latest version of the compatible driver to solve the problem.

Refer to the above method to open "Manage", select Device Manager, click on the graphics card, uninstall the device inside and check Uninstall the driver, and then reboot into the system to update the graphics card driver.

4. System update: The incompatibility after the automatic update will cause a black screen, and you need to uninstall the latest update to solve the problem.

Refer to the above method to open the "Task Manager", select the file to create a new task to run, enter ", open the control panel, open Programs and Functions, click on the left to view the installed updates, and right-click to uninstall the latest updates.

5. System failure: If the above methods are not solved, you need to back up the data (refer to the above method to open the file browsing window and copy the backup) and then reinstall the system or restore it with one click.

The black screen of Lenovo laptop can't be opened, and the method of dealing with it is as follows:

1. The black screen of the laptop should first check whether the notebook is in a sleeping or dormant state, you can press the esc button of the keyboard several times to see if the keyboard light is on.

2. The connection cable between the monitor and the notebook is loose, if the notebook is connected to other monitors, it is recommended to reconnect the line between the monitor and the notebook.

3. Hardware problems, choose to enter the BIOS immediately after booting to see if the screen will also be black, if the screen is also black, the hardware is faulty.

4. System update, incompatibility after automatic update leads to black screen, you need to uninstall the latest update to solve.

5. Power failure problem, let the laptop charge for a while, and try to turn on again in the charging state.

6. If the system fails, call the notebook after-sales service for maintenance.

Lenovo notebook hardware failure

Mainly CPU, memory, hard disk, graphics card and other issues.

First check whether it is a CPU or memory failure problem that causes Yu Zheng Na to not work properly, usually a problem with the memory module and SSD. It's also possible that the motherboard chip is damaged or there is a memory module problem.

The position of the motherboard and memory modules is fixed, which makes it difficult for the fan to rotate and causes abnormal noises. The power supply, water ingress into the case, and the computer cannot boot, etc., all of which will cause the laptop hard drive and memory module to fail to boot normally. Then it needs to be taken apart for overhaul.

Lenovo laptop can't be opened and the screen has been black Hello dear, thank you for your patience, the answer has been found for you, you check a trace of sleepiness! There are several reasons for this; 1. Problems with the power adapter. If the laptop screen goes black when you turn it on, the indicator light is on, but the home screen is black.

Put your hand on the fan position of the main unit, and there is no gesture of wind. If possible, you can use a multimeter to check whether the power adapter reaches the rated voltage, if there is no voltage in each circuit, then it is a problem with the power adapter. Remove it and replace it with one.

2. The problem of starting the switch, the black screen when booting up, and no self-check. Short the boot end on the motherboard with the watch hand to start normally. 3. Memory module problem, the open family grip has a black screen, and it does not self-check.

Replace the memory module directly. 4. For other problems, the motherboard needs to be replaced if the motherboard signal is detected and the short circuit is short. I hope my answer is helpful to you, and finally I wish you good health and a happy mood again!