Advice 1: Why in Windows7 darkens the screen

Perhaps, quite often, users of personal computers saw a picture, when powering up a personal computer on the screen appears a black screen.
Why in Windows7 darkens the screen

Why darken the screen?

Of course, the appearance of a black screen on the computer monitor is not a sign of anything good. We can confidently say that on a personal computer contains errors of a certain kind, and they produce the following screen. A after the occurrence of such a malfunction in a hurry to reinstall your operating system, believing that it will help them in solving the problem. It should be noted that it can be solved much faster and without reinstalling the OS. For starters, you want to check the hard disk for the presence of different types of errors and then restore Windows to that point, there had been a problem.

The solution to the problem

For example, quite often a black screen appears when carried out incorrect shutdown of the computer. Naturally, this is accompanied by the emergence of different types of errors and a black screen appears. In addition, there may happen a variety of failures in hard disk, in consequence of which certain system files become corrupted or are deleted, then appears a black screen.

To start the user is required to check the efficiency of the monitor. This is done as follows: disconnect the display cable that goes from it to the computer, and turn on the power of the monitor. If in this case there appears No Sigmal, then the monitor is fine and works as it should. After that, it is advisable to connect the same monitor to another computer and check again, because maybe the problem in some parts.

If the screen darkens gradually when working with the device, it may arise about: the breakdown of the plume of a fault in the matrix, as well as failure of the graphics card. If the computer screen darkens when you move across the screen, then, most likely, the fault lies in the settings of the monitor. For example, for the most part, this is due to high screen resolution, which is not suitable for your monitor. If so, then right-click the mouse on the desktop and in the menu select "screen Resolution". Here you can move the slider down and check out how to work the screen with another resolution. Sometimes the problem may be related to drivers. To do this, simply go to the official website of the manufacturer of the graphics card, find suitable for your device and download them, then re-install.

Advice 2: Why is my screen black

PC users are often faced with a black screen while working. It occurs for various reasons, such as having hardware problems or problems in any apps.
Why is my screen black
Make sure video card is properly installed on the motherboard of the computer. Also, check that is securely connected the monitor, checking the connectors on the system unit and the device. If the problem lies with the video card or the monitor, most likely, when the computer is turned on you will hear the familiar sounds of boot, but the display will be missing.
Install the latest drivers for monitor and graphics card. If they are not, you can watch the complete lack of images and too blurry or dark picture. Also try to adjust the monitor image with the function keys located on its front panel. May have strayed adjust the brightness and contrast, whereby the image on the monitor is too dark.
If black screen occurs when you run an application, such as a computer game, it might not fit your system requirements and hangs at the start. Try pressing the Windows key or Ctrl+Alt+Del to end the program that caused a system hang, or click on the Reset button located on the system unit.
Black screen can occur as a valid feature of the system in certain cases. For example, during installation of drivers for the video adapter, the screen may become black for some time. The reason for this is the autoconfiguration of the system and install the appropriate video settings. After some time the image appears on the monitor again. Also some computer games have no loading screen, resulting in after they start a user a few minutes to watch a black screen. Then an image appears, and starts the game itself.
Is the advice useful?