Win7 boot black screen only mouse solution

1. Press the keyboard Ctrl+Alt+Del at the same time (of course, before this step, first make sure the computer is connected to the keyboard), select “Start Task Manager” in the list, this will pop up “ld”; Task Manager, use the mouse to click the menu in the upper left corner “File”-“New Task", in the pop-up "Create 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.