Bio-based plastics HS code classification

List of contents of this article:

• 1 ,Bio-based plastics HS code classification Analyze the reasons and solutions of the black screen of the win7 system computer
• 2,Solve the problem of black screen on the computer of win7 system
• 3, What should I do if the win7 system starts up with a black screen?
• 4, How to solve the black screen of Win7 system?

Parse the causes and solutions of the black screen of the win7 system computer

Reason 4: If the floppy drive is improperly started, the screen will be black. Solution: Sometimes the floppy drive will be improperly started Cause the computer to start up or restart the black screen. In order to avoid this situation, you can also cancel the floppy disk startup item in the BIOS. Press DEL to enter the BIOS and then select advancedbiosetup. If you see floopy, change it to HDD-0 or IDE-0.

To check the reason for the black screen of the computer, first listen to if your computer fan is turning. If it doesn't turn, it means that your motherboard is burned.Excessive static electricity is the most common way.

There are many reasons for the failure of the black screen of the computer, such as monitor damage, motherboard damage, graphics card damage, poor contact of graphics card, power supply damage, CPU damage, etc. The processing of the black screen of the computer basically adopts the method of combining exclusion and replacement, and the principle should be to replace and exclude the most suspicious parts first.

So far, the problem should be completely solved. In addition, the problem is caused by the virus. Please check the computer for viruses. Computer users who have the following conditions can use the following methods. The startup black screen problem occurs after updating without installing any software.

Virus infection, some files of Windows are overwritten by the corresponding files of the application software, software conflicts, improper user operation such as deleting system files, BUG in the application software, black screen when opened, etc. will also cause black screen of the computer.System files are damaged, including boot program errors, incorrect operations, registry damage, etc., which will cause the computer to have a black screen.

If the computer still has a black screen, it is recommended to replace the motherboard; whether the system installs software and update patches, if so, please uninstall the update file; after installing the software, restarting the computer is updating, causing a black screen, wait for the update to be completed; you can enter the safe mode to repair the computer, if you can't enter the safe mode, please reinstall System.

Solve the problem of black screen on the computer of win7 system

1. Check whether the capacitor of the CPU bursts, whether there is a burning smell, and if there is a smell, it means that the hardware is damaged. Send it to the computer store. It has been repaired. WIN7 starts up with a black screen, but you can watch it.To the solution of the mouse, press Ctrl+Alt+Del on the keyboard at the same time to start the task manager.

2. Graphics card or monitor problem: These two devices account for a large proportion of computer startup black screen failure. Usually, the replacement method is used to replace a monitor. If used normally, it means that the original monitor is broken.

3. The solution is to check whether the new hardware is firmly plugged in, unplug it, and then try to change the slot, and install the latest driver. If it is not for the above reasons, or you can use the following commonly used black screen solution to quickly press the F8 key when starting up. The advanced boot option menu will appear. Select "Last Correct Configuration".

4. In face of this question, here are two ways to solve the black screen of win7 startup.Method: Enter the safe mode repair, press the computer's power-on key, and then keep pressing the F8 key. After that, the advanced options interface will appear on the computer, and click the safe mode.

5. The solution to the black screen of Win7 system startup is as follows: First, check whether it is a hardware problem: open the computer chassis and check whether the hardware connection, such as memory stick, hard disk, etc. are in poor contact. If so, just reconnect.

What should I do if the win7 system starts up with a black screen?

The solution is to check whether the new hardware is firmly plugged in, unplug it, and then try it in another slot, and install the latest driver. If it is not for the above reasons, or you can use the following commonly used black screen solution to quickly press the F8 key when power-on, and the advanced boot option menu will appear, and then Select "Last Correct Configuration".

Method: As shown in the figure below, you can't enter the system. You can only enter here. Insert the USB flash drive or CD-ROM into the computer and select the USB flash drive to start. AFTER ENTERING THE PE SYSTEM, SELECT WINDOWS BOOT BOOT REPAIR. After the dialog box appears, enter the C disk.Select 1 in the following dialog box.

Turn on the screen directly black: First, check whether the monitor power supply is turned on. If it is turned on, check whether the monitor switch is turned on; secondly, check whether the host power indicator light is on. If it is not on, consider that the power supply may be broken. If it is on, listen to the sound after the host is powered on.

The solution to the black screen of Win7 system startup is as follows: First, check whether it is a hardware problem: open the computer chassis and check whether the hardware connection, such as memory strips, hard disk, etc., is in poor contact. If so, reconnect.

How to solve the black screen of Win7 system?

Check whether the new hardware is plugged in, unplug it, and then try another slot, and install the latest driver.

The solution is also very simple, adding heat sink or replacing the radiator. Graphics card or monitor problem: These two devices account for a large proportion in the black screen failure of the computer. Usually, the replacement method is used to replace the monitor. If it is used normally, it means that the original monitor is broken.

Restart the computer. If your computer suddenly has a black screen, it is recommended that you restart the computer. Press the power button of the computer for a long time to force the shutdown. After the computer is completely shut down, press the power button for about ten seconds to restart the computer. The problem may be fixed automatically after restarting.