You may have set your system shutdown to sleep. By default, you can shut down your computer by clicking the Shutdown button in the Start menu. You can change this so that instead of shutting down, the computer logs out of your account, locks up, restarts, goes to sleep, or hibernates.
Click to open the Taskbar and Start Menu Properties.
Click the Start Menu tab.
In the Power Button Actions list, click an item and then click OK.
When you change the Power Off button, the name of the button changes to reflect the name of the new action.
Then try shutting down
Computer can not shut down the common causes;
1. Most of the cases are caused by the virus Trojan horse computer can not shut down the computer, the more typical virus is kidnapping Trojan horse, it is a new destructive Trojan horse, with the traditional virus is different, it is through the kidnapping of the system file registry to realize the boot, resulting in the computer shut down the button! It's a new type of Trojan horse that is very destructive.
2. System files (usually sound files) are lost or corrupted
3. Incorrect CMOS settings can cause the computer to fail to shut down properly.
4. User operation error
Solution:
1. Check and kill the Trojan horse
2. ii. Users mistakenly modify the computer shutdown configuration file caused by the repair method is as follows
1. Start "?ú" Run "?ú", in the "Run" dialog box, type " regedit", click "OK" to find the following content: HKEY-LOCAL- MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\policies click "system" folder, and then double-click the "shutdownwithoutlogon" item on the right.
2. "Start" → "Run", in the "Run" dialog box, type "gpedit.msc", and then click "gpedit.msc". ", and then click the "OK" button. In the "Group Policy" window, double-click "Administrative Templates" → "Taskbar and Start Menu", and then double-click "Remove and block access to 'Shutdown'" on the right. Remove and block access to the 'Shutdown' command" on the right side. In the "Remove and block access to the 'Shutdown' command properties" window, click the "Settings" tab, select "Disabled", and then click "Disabled". in the "Remove and block access to the 'Shutdown' command properties" window, click the "Settings" tab, select "Disabled", and then click the "OK" button.
3. The first thing you can do is to make sure that the "Quit Windows" sound file is not corrupted - open the "Control Panel", open "Sound", and then click "OK". "Open Control Panel, open Sound, and cancel the "Quit Windows" sound. If Windows shuts down normally, the problem is caused by the exit sound file. To solve this problem, you can restore the sound file from a backup or reinstall the program that provides the sound file, or you can define "Exit Windows" as silent.
4. When the computer starts up, you can enter the CMOS settings page and check whether the CPU frequency, power management, virus detection, IRQ interrupt on/off, disk boot sequence and other options are set correctly. Specific settings you can refer to your motherboard manual. If you don't know the settings, you can restore the factory default settings directly.