Win7 system computer clicks shutdown but becomes logout

            1, may be in the computer virus, the system to comprehensively check the virus, remove the Trojan virus inside the computer;
2, try to use the command to shut down, press Win + R to open the run, enter CMD, enter;
3. Enter shutdown/s in cmd, click Enter to see if it can be shut down;
4, disable group policy settings, enter gpedit.msc in the running, click Enter;
5, double-click “ user Configure “ under “Administrative Templates 
6. Then double-click “Start”Menu and Taskbar;
7. Find “Delete and block access shutdown in the list on the right, Restart, sleep and hibernate commands & quoquo;, and double-click to open;
8, select “ disabled & rdquo; and click OK, then see if you can shut down.