How to fix the WIN8 system screen background darken

Computer use of the desktop wallpaper will be replaced, many users will be their favorite picture set to screen wallpaper, so that the system looks more beautiful. Recently, a user in the win8.1 system environment when the scene suddenly turned black, and the w764 bit of the flagship version similar, although the normal operation, but it is very important to the appearance of the desktop, then encounter black screen background problems how to repair it?

1, first use the shortcut key "Win+r" to open the running window, in the input "regedit", and then click OK to call the Registry Editor;

2, then in the Registry Editor to expand positioning hkey_current_usercontrol paneldesktop option, in the desktop option to the right window inside find "Logpixels" key value, and then click the right mouse button to delete directly;

3, if in the above window did not find "logpixels" key value, the right mouse click on the system's desktop, and then select Personalized, display, and then adjust the project size, click Application to save, and then you can in the Hkey_current_usercontrol Paneldesktop Find the Logpixels value, delete directly;

4, after the implementation of the Logpixels key values to delete, we can restart the computer or the system desktop wallpaper to replace it.

In the WIN8 operating system in the screen background to black there are a number of factors to solve the problem, there are several methods, the above is introduced through the registry of Logpixels key value to remove the screen to solve the problem of black, hope to help everyone.