Cách sửa lỗi màn hình đen trên máy tính

Cách sửa lỗi màn hình đen trên máy tính

Black screen errors on your computer prevent you from accessing Windows activities and interrupt your work. To fix the black screen error on Windows 11, 10, 8, 7 computers, you can refer to the instructions in the article below and apply.
Surely among us when using a computer, we all encounter a situation where the desktop becomes a black screen, even if we change any wallpaper, we will return to the same black screen after every reboot. calculation, we can call this error black screen error.

Instructions on how to fix the black screen error on the computer

Content:1. The most basic cause of black screen error: 1.1. Because the screen is not turned on 1.2. Due to the power cord (case or screen) 1.3. Turn on the self-off mode (Sleep) 1.4. Laptop battery out2. Hardware black screen error (cannot enter Win): 2.1 Due to the Graphics Card 2.2 Due to Ram – Cache 2.3 Due to hard drive 2.4 Due to high temperature 2.5 Due to broken screen3. Black screen error due to System (Windows has been entered): 3.1 Windows is out of date 3.2 Windows Explorer Error 3.3 By enabling Fast Startup mode 3.4 Due to patch update, Update 3.5 Due to User error 3.6 Due to Operating System
Causes and effective ways to fix the computer black screen error
1. The most basic cause of black screen error:
* Due to not turning on the screen

If you get a black screen error right from the start, the screen does not display any information, it is most likely because the monitor is not turned on or there is a connection problem.Please check your computer monitor switch to see if it is on, if not, proceed to open it again. Next, you check that the two signal cables are connected correctly or not. Many users have encountered black screen errors due to wrong port connections (DisplayPort, HDMI, DVI, Thunderbolt, VGA).
* Due to the case power cord, screen
+ Check the computer case power cord
When starting the computer, you see a black screen, the power fan is not running, the signal light on the board is not lit, it is most likely that your wire or power supply is not connected or damaged.

Use an electrical tester to check from the power outlet to the computer’s power cord for power. Open the case and reconnect the power leads to the motherboard. If power is still not coming in, you will most likely need to consider replacing the power cord or power supply.
+ Check the monitor power cord, monitor cable and case
In case the computer power is still running, you need to review the cable connecting the case and monitor power as well as the power cord for your monitor.

It is necessary to attach the 2 ends tightly and correctly.

The worst case scenario is that you need to replace this connecting cable.
* Due to turning on the screen auto-off mode (Sleep)
In case you get a black screen error when using it normally, it may be because the machine has set the screen to turn off automatically, you can reset it as follows.Step 1: Press Windows key to open Start Menu. Enter keywords “Power Options“.Step 2: Access to Power & Sleep.

Step 3: Set items Screen and Sleep Fort Never.

* Running out of battery when using laptop
Similar to when using a desktop computer, your laptop may appear to have a sudden black screen error when it runs out of power (battery). In this case, you just need to plug the laptop back in and continue using it.
2. Hardware black screen error (cannot enter Win):
With hardware causes, usually users will encounter a black screen error right from booting into Windows.
2.1. Black screen error due to graphics card
Not every black screen error on the computer caused by the graphics card is serious and difficult to repair. In case the Windows operating system does not detect the screen, please use the key combination Windows + Ctrl + Shift + CANCEL to force the system to restart the graphics card.

In case the Black Screen error is more serious. You completely remove the computer screen and connect to another computer to test. If there are still no results, you continue to clean the graphics card and reinstall it to check or try to replace it with another graphics card.
2.2. Black screen error due to Ram
After you have checked the power supply and the graphics card, but the machine still shows a black screen error, you need to consider the RAM memory.Please remove the RAM and clean the connector, the connection slot to avoid dirt or loose. In addition, you can also install the RAM to a connection slot or other device to test.
2.3. Black screen error due to hard drive
A damaged, inactive hard drive is also a high cause of a computer’s black screen error as soon as it boots into Windows. If using on HDD, put your hand on the hard drive when booting to see if it vibrates to indicate that it is working. If the hard drive is still running but makes a “click” sound, it means it’s time to replace the hard drive with a new one.Note: This method cannot be applied to SSD hard drives
2.4. Computer error with black screen due to high temperature
A fairly common case of a computer having a black screen error is due to constantly operating at too high a temperature. At this time, the system will automatically turn off to cool down the device. To prevent this situation, as well as increase the life of the computer, you should clean the machine, apply thermal paste to the CPU or install a cooling fan.
2.5. Due to broken screen
If you check all the hardware and you still see them working properly, you can be pretty sure that your computer screen is having problems. At this point, find another computer screen to replace, check it one last time before planning to bring it in for repair or replacement.
3. Black screen error due to System (Windows has been entered):
Applicable to cases where the computer has successfully started up and has a black screen during use.
3.1. Windows is out of date
To fix the black screen error on Windows 7/8/10 and the words This copy of windows it is not genuine on the screen, do the following.
Step 1: Pressing the Windows key opens the Start Menu. Enter keyword “CMD”Step 2: Select run as administrator, Run as administrator.

Step 3: In the Command Prompt window enter the command SLMGR_REARM, then press Enter.If the SLMGR_REARM command does not run, try the LMGR –REARM or SLMGR /REARM command.

Step 4: When the screen appears a message window as shown below is a sign of success. Click OK and reboot your computer.
3.2. Windows Explorer error
The computer may be attacked by malicious codes and viruses that attack Windows Explorer, causing a black screen error on the computer. First, you need temporary re-access to Windows Explorer to run anti-virus software.
Step 1: Press the key combination Ctrl + Alt + Del. Then select Task Manager.Step 2: In the window Task Managerselect File tab. Continue to choose Run new task.

Step 3: In the dialog box Run appears, enter the command explorer.exe and press Enter.

Step 4: After entering the Desktop, you run anti-virus software to remove it completely.Finally, restart your computer to check if you still have the black screen error.
3.3. By enabling fast startup (Fast Startup)
To turn off Fast Startup, do the following:
Step 1: Press key combination Windows + CHEAPenter the command Controlselect OK.

Step 2: Access to Power Options

Step 3: Click on the item Choose what the power buttons do.

Step 4: Here you uncheck the item Turn on fast startup then choose Save Changes done.

In case you see the selections are blurred as shown below, click on the line Change settings that are currently unavailable as shown below is ok.

3.4. Due to Windows update patch from Microsoft
The best way to fix the black screen error caused by Windows patch updates from Microsoft is to turn off automatic updates. Turning off the automatic update function of Windows may prevent your computer from receiving the latest patches and fixes from Microsoft publishers, from which your computer may encounter any errors.
*For Windows 10
Step 1: Press the key combination Windows + CHEAP to open the Run window, type “service.msc” in the empty box.

Step 2: In the service window, you find the item Windows Update.

Step 3: In the window Windows Update Serviceyou click Stop to stop the service, then select Disable on the Statup Type list.

Step 4: Press OKthen restart the machine.
*For Windows 8, 8.1
Step 1: Press the key combination Windows + Xselect open Control Panel.

Step 2: You click on the item Windows Update.

Step 3: In the window Windows Updateyou press Change settings.

Step 4: Item selection Never check for updates (not recommended) in the item Important Updatethen press OK.

Step 5: Restart the machine and check the phenomenon.
*For Windows 7
Step 1: First you go to Control Panel

Step 2: Next click on System and Security.

Step 3: Select next item Turn automatic updating on or off.

Step 4: A new window will appear, at Important Updatesyou click on it and select Never check for updates (not recommended).In 2 items Recommended updates and Who can install updates at the bottom, you untick in 2 empty cells.Next you press OK and restart the computer to see the result.

3.5. Due to User error
How to fix: Create a new User and delete the current faulty User
Step 1: Open a CMD . window on WindowsStep 2: Enter the command to create a new User: net user [Username] [Password] /add
In there:– Username: You replace it with the account name you want to set.– Password: Set a password for the user account.
For example: We create a new User named Vik News12, Login password is 123456net user Vik News12 123456 /add

Step 3: To grant Administrator rights to the new User, continue to enter the command net localgroup administrators [Username] /add.For example: net localgroup administrators Vik News12 /add

Step 4: Delete the faulty User account with the command: net user [UserName] /delFor example: net user Vik News12 /del

3.6. Due to the operating system
How to fix: Reinstall Windows operating system
If the screen error has not been resolved, you can think about reinstalling Windows for your computer.
– How to install Windows 11– How to install Windows 10– How to install Windows 8– How to install Windows 7
https://thuthuat.taimienphi.vn/sua-loi-man-hinh-den-751n.aspx Is the computer not on the screen a serious problem and how to fix this situation? If you want to know Computer does not show up Whether your problem is heavy or light we need to first find out the possible causes of your screen as well as a few quick fixes that can be tried before diving deeper into the problem.

#Cách #sửa #lỗi #màn #hình #đen #trên #máy #tính

Cách sửa lỗi màn hình đen trên máy tính

Black screen errors on your computer prevent you from accessing Windows activities and interrupt your work. To fix the black screen error on Windows 11, 10, 8, 7 computers, you can refer to the instructions in the article below and apply.
Surely among us when using a computer, we all encounter a situation where the desktop becomes a black screen, even if we change any wallpaper, we will return to the same black screen after every reboot. calculation, we can call this error black screen error.

Instructions on how to fix the black screen error on the computer

Content:1. The most basic cause of black screen error: 1.1. Because the screen is not turned on 1.2. Due to the power cord (case or screen) 1.3. Turn on the self-off mode (Sleep) 1.4. Laptop battery out2. Hardware black screen error (cannot enter Win): 2.1 Due to the Graphics Card 2.2 Due to Ram – Cache 2.3 Due to hard drive 2.4 Due to high temperature 2.5 Due to broken screen3. Black screen error due to System (Windows has been entered): 3.1 Windows is out of date 3.2 Windows Explorer Error 3.3 By enabling Fast Startup mode 3.4 Due to patch update, Update 3.5 Due to User error 3.6 Due to Operating System
Causes and effective ways to fix the computer black screen error
1. The most basic cause of black screen error:
* Due to not turning on the screen

If you get a black screen error right from the start, the screen does not display any information, it is most likely because the monitor is not turned on or there is a connection problem.Please check your computer monitor switch to see if it is on, if not, proceed to open it again. Next, you check that the two signal cables are connected correctly or not. Many users have encountered black screen errors due to wrong port connections (DisplayPort, HDMI, DVI, Thunderbolt, VGA).
* Due to the case power cord, screen
+ Check the computer case power cord
When starting the computer, you see a black screen, the power fan is not running, the signal light on the board is not lit, it is most likely that your wire or power supply is not connected or damaged.

Use an electrical tester to check from the power outlet to the computer’s power cord for power. Open the case and reconnect the power leads to the motherboard. If power is still not coming in, you will most likely need to consider replacing the power cord or power supply.
+ Check the monitor power cord, monitor cable and case
In case the computer power is still running, you need to review the cable connecting the case and monitor power as well as the power cord for your monitor.

It is necessary to attach the 2 ends tightly and correctly.

The worst case scenario is that you need to replace this connecting cable.
* Due to turning on the screen auto-off mode (Sleep)
In case you get a black screen error when using it normally, it may be because the machine has set the screen to turn off automatically, you can reset it as follows.Step 1: Press Windows key to open Start Menu. Enter keywords “Power Options“.Step 2: Access to Power & Sleep.

Step 3: Set items Screen and Sleep Fort Never.

* Running out of battery when using laptop
Similar to when using a desktop computer, your laptop may appear to have a sudden black screen error when it runs out of power (battery). In this case, you just need to plug the laptop back in and continue using it.
2. Hardware black screen error (cannot enter Win):
With hardware causes, usually users will encounter a black screen error right from booting into Windows.
2.1. Black screen error due to graphics card
Not every black screen error on the computer caused by the graphics card is serious and difficult to repair. In case the Windows operating system does not detect the screen, please use the key combination Windows + Ctrl + Shift + CANCEL to force the system to restart the graphics card.

In case the Black Screen error is more serious. You completely remove the computer screen and connect to another computer to test. If there are still no results, you continue to clean the graphics card and reinstall it to check or try to replace it with another graphics card.
2.2. Black screen error due to Ram
After you have checked the power supply and the graphics card, but the machine still shows a black screen error, you need to consider the RAM memory.Please remove the RAM and clean the connector, the connection slot to avoid dirt or loose. In addition, you can also install the RAM to a connection slot or other device to test.
2.3. Black screen error due to hard drive
A damaged, inactive hard drive is also a high cause of a computer’s black screen error as soon as it boots into Windows. If using on HDD, put your hand on the hard drive when booting to see if it vibrates to indicate that it is working. If the hard drive is still running but makes a “click” sound, it means it’s time to replace the hard drive with a new one.Note: This method cannot be applied to SSD hard drives
2.4. Computer error with black screen due to high temperature
A fairly common case of a computer having a black screen error is due to constantly operating at too high a temperature. At this time, the system will automatically turn off to cool down the device. To prevent this situation, as well as increase the life of the computer, you should clean the machine, apply thermal paste to the CPU or install a cooling fan.
2.5. Due to broken screen
If you check all the hardware and you still see them working properly, you can be pretty sure that your computer screen is having problems. At this point, find another computer screen to replace, check it one last time before planning to bring it in for repair or replacement.
3. Black screen error due to System (Windows has been entered):
Applicable to cases where the computer has successfully started up and has a black screen during use.
3.1. Windows is out of date
To fix the black screen error on Windows 7/8/10 and the words This copy of windows it is not genuine on the screen, do the following.
Step 1: Pressing the Windows key opens the Start Menu. Enter keyword “CMD”Step 2: Select run as administrator, Run as administrator.

Step 3: In the Command Prompt window enter the command SLMGR_REARM, then press Enter.If the SLMGR_REARM command does not run, try the LMGR –REARM or SLMGR /REARM command.

Step 4: When the screen appears a message window as shown below is a sign of success. Click OK and reboot your computer.
3.2. Windows Explorer error
The computer may be attacked by malicious codes and viruses that attack Windows Explorer, causing a black screen error on the computer. First, you need temporary re-access to Windows Explorer to run anti-virus software.
Step 1: Press the key combination Ctrl + Alt + Del. Then select Task Manager.Step 2: In the window Task Managerselect File tab. Continue to choose Run new task.

Step 3: In the dialog box Run appears, enter the command explorer.exe and press Enter.

Step 4: After entering the Desktop, you run anti-virus software to remove it completely.Finally, restart your computer to check if you still have the black screen error.
3.3. By enabling fast startup (Fast Startup)
To turn off Fast Startup, do the following:
Step 1: Press key combination Windows + CHEAPenter the command Controlselect OK.

Step 2: Access to Power Options

Step 3: Click on the item Choose what the power buttons do.

Step 4: Here you uncheck the item Turn on fast startup then choose Save Changes done.

In case you see the selections are blurred as shown below, click on the line Change settings that are currently unavailable as shown below is ok.

3.4. Due to Windows update patch from Microsoft
The best way to fix the black screen error caused by Windows patch updates from Microsoft is to turn off automatic updates. Turning off the automatic update function of Windows may prevent your computer from receiving the latest patches and fixes from Microsoft publishers, from which your computer may encounter any errors.
*For Windows 10
Step 1: Press the key combination Windows + CHEAP to open the Run window, type “service.msc” in the empty box.

Step 2: In the service window, you find the item Windows Update.

Step 3: In the window Windows Update Serviceyou click Stop to stop the service, then select Disable on the Statup Type list.

Step 4: Press OKthen restart the machine.
*For Windows 8, 8.1
Step 1: Press the key combination Windows + Xselect open Control Panel.

Step 2: You click on the item Windows Update.

Step 3: In the window Windows Updateyou press Change settings.

Step 4: Item selection Never check for updates (not recommended) in the item Important Updatethen press OK.

Step 5: Restart the machine and check the phenomenon.
*For Windows 7
Step 1: First you go to Control Panel

Step 2: Next click on System and Security.

Step 3: Select next item Turn automatic updating on or off.

Step 4: A new window will appear, at Important Updatesyou click on it and select Never check for updates (not recommended).In 2 items Recommended updates and Who can install updates at the bottom, you untick in 2 empty cells.Next you press OK and restart the computer to see the result.

3.5. Due to User error
How to fix: Create a new User and delete the current faulty User
Step 1: Open a CMD . window on WindowsStep 2: Enter the command to create a new User: net user [Username] [Password] /add
In there:– Username: You replace it with the account name you want to set.– Password: Set a password for the user account.
For example: We create a new User named Vik News12, Login password is 123456net user Vik News12 123456 /add

Step 3: To grant Administrator rights to the new User, continue to enter the command net localgroup administrators [Username] /add.For example: net localgroup administrators Vik News12 /add

Step 4: Delete the faulty User account with the command: net user [UserName] /delFor example: net user Vik News12 /del

3.6. Due to the operating system
How to fix: Reinstall Windows operating system
If the screen error has not been resolved, you can think about reinstalling Windows for your computer.
– How to install Windows 11– How to install Windows 10– How to install Windows 8– How to install Windows 7
https://thuthuat.taimienphi.vn/sua-loi-man-hinh-den-751n.aspx Is the computer not on the screen a serious problem and how to fix this situation? If you want to know Computer does not show up Whether your problem is heavy or light we need to first find out the possible causes of your screen as well as a few quick fixes that can be tried before diving deeper into the problem.

#Cách #sửa #lỗi #màn #hình #đen #trên #máy #tính