Win7 boot black screen only mouse on the screen solution

1. Press the keyboard Ctrl+Alt+Del at the same time (of course, before this step, first ensure that the computer is connected to the keyboard), select "ld" in the list Task Manager & rdquo; This will pop up "Task Manager", click on the menu in the upper left corner of the menu <; File & rdquo; - & ldquo; New Task & rdquo;, in the pop-up "Create a new task" dialog box Enter “explorer”point“determine", this is the normal display of the system's desktop, which completes the first step, complete the following steps.
2. Click the "Start" button in the lower left corner of the screen, enter "ldedit" in the text box, press enter to enter the registry, and then expand the registry option:
HKEY_Local_MachineSoftwareMicrosoftWindows NTCurrentVersionWinlogon, (with mouse Click on the corresponding item to expand its sub-items, find the corresponding option in the sub-item, and then find the Winlogon item.
Find the winlogon item, click with the mouse, find the ”Shell” item in the list on the right side of the screen, right click on it, in the drop-down menu, select “Modify “, in the pop-up "Edit" In the string & rdquo; dialog box delete “ digital data & rdquo; & rdquo; explorer.exe & rdquo; behind the content, click OK, and close the registry,
At this point, the problem should be completely resolved, in addition, the problem is Due to the virus, please check the computer.