How to solve the Win7 computer in the shutdown key is missing

method One,

1, enter "Gpedit.msc" in the Operation dialog box, the carriage return opens the Group Policy window;

2, then in the Open Group Policy window, double-click the Administrative Templates taskbar and Start menu, and then double-click the "Remove and block access" command on the right;

3. In the pop-up "delete and block access Shutdown Command Properties" window, switch to the Settings tab, select Disabled, and then OK.

　Method Two,

1, click the Start menu to run, and enter "Regedit.exe", Return to open Registry Editor;

2, then expand to "Hkey-local-machinesoftwaremicrosoftwindowscurrentversionpoliciessystem" in turn;

3, and then on the right side of the window to find and double-click the "ShutdownWithoutLogon" item, and change its value to 1 can be.

　Methods Three,

1, the problem is not resolved, the same access to the registry, and then expand positioning to Hkey_current_usersoftwaremicrosoftwindowscurrentversionpoliciesexplorer, See if there is a Noclose key value in the right window, and then change its value to 0 or delete it, and then save the exit.

　Method Four,

If there is a problem, restart the computer, press F8 into the security mode of the advanced settings, click into the "Last Known Good Configuration" mode into the computer can be.