How to interpret trade volume changes

Win7 black screen only has mouse arrow (Win7 black screen mouse cursor flashing,How to interpret trade volume changes unable to log in!) The black screen of Win7 only has a mouse arrow, which may be caused by an abnormality in the operating system, or damage to the system file, or a computer hardware failure. Sometimes, when users are using a Win7 computer, they will suddenly encounter a black screen problem. Only the mouse cursor is flashing and cannot log in to the desktop interface. This situation is tricky and extremely annoying, because it causes many problems, such as file loss, inability to use software, etc., and even causes the computer to fail to start normally.If you don't know how to solve the black screen problem, here are some useful ways to solve the problem. Method 1: Restart the computer. In order to restore the computer to normal, you can try to press Ctrl+Alt+Delete to see if the task manager can be opened. If so, you can directly select to restart the computer. If you can't open the task manager, you can press the start key for a long time to force the computer to shut down before restarting the computer. Method 2: Repair system files. Execute the following command in the command prompt: sfc /scannow command can scan system files to find and repair any problems related to the operating system. Of course, the execution of this method requires administrator rights. Method 3: Uninstall the graphics card driver. Sometimes, the incompatibility or failure of the graphics card driver may lead to the problem of Win7 black screen.Therefore, you can try to uninstall the graphics card driver and reinstall it. The specific operation steps are as follows: 1. Enter safe mode: Press the F8 key continuously on the startup page, then select the "Safe Mode" option, and press the return key to enter the safe mode. Two. Uninstall the graphics card driver: Open the device manager, right-click in the graphics card options, select the "Uninstall" option, and then restart the computer. 3. Reinstall the driver: Reinstall the correct version of the graphics card driver in normal mode, and then restart the computer. Method 4: Using system restoration System restoration is a good solution to solve computer problems. You just need to choose to return to the nearest time point and restore to a certain operation time point. The specific steps are as follows: 1. Press the Windows+R key and enter rstrui.Exe and press the Enter key to open the system restore interface. Two. After selecting the time point you want to restore in the system restore wizard, click the "Next" button. The system restore will prompt you to confirm the changes after the system restore. Click the "Finish" button to start the restore process. Method 5: Reinstall the operating system. If none of the above methods can solve the black screen problem of Win7, then you can try to reinstall the operating system. The specific operation steps are as follows: 1. Backup data: Reinstalling the system will cause all your data to be cleared or deleted, so it is recommended that you back up all the important data you want to keep before reinstalling the system. Two. Get the installation medium: You need a Windows 7 installation disk or a boot disk to reinstall the system. 3. Install the operating system: use the installation media to boot and install the operating system.Just follow the prompts in the installation wizard to set up. In summary, the black screen of Win7 only has a mouse arrow, which is a separate problem. If you encounter this problem, please don't panic. You can solve the problem through any of the above five methods. If you are not sure how to deal with it, please contact a computer maintenance expert.

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