Why does the computer turn off automatically when it's switched on?

Today encountered a very strange thing, the morning boot well, the afternoon computer boot a few seconds, or a few 10 seconds on the automatic shutdown, the same as the sudden blackout, do not automatically restart.

A functioning computer is not shut down for no reason. What could possibly cause the computer to turn off the machine automatically?

1. Host heat loss, power supply failure, motherboard failure, may result in computer automatic shutdown or repeated restart automatically. (reboot is an important feature: sometimes shutdown, sometimes reboot)

2. Virus Trojan damage, when the system core components damaged, the computer is running may automatically shutdown. Jinshan security experts here, to provide you with special kill tools and system repair tools, please click on the fast download.

3. In the running software, there are some software with the task to complete the shutdown option, may not be noticed by the user, the switch turned on. These software is more common, such as thunder, Express, anti-virus software, BT download, video playback and so on. In software settings, there is an automatic shutdown action after a task has been completed. However, the general default setting is off. The goal is to automatically turn off the computer when the task is completed by running more time-consuming operations.

4. Other hardware reasons.

Computer Automatic shutdown Solution:

1. First check the hardware is not a problem, focus on the motherboard, CPU fan, host power supply, power outlet is not a problem.

2. Check if there are some application software tasks completed after the shutdown was enabled. It is obvious that it can be seen. The feature is that before the shutdown, there will always be a program to run, usually play a dialog box to remind the shutdown.

3. Solve the virus trojan, repair system damaged files. Using Jinshan Poison PA 2011 The latest version can be completed at one time virus cleanup and system configuration repair. How to set up computer automatic shutdown for this part of the user, setting up automatic shutdown is a very simple task. Click Start, Run, enter "at 22:00 shutdown-s", 22:00 This is just an example, you can set the time according to their own habits. You can also enter the "Shutdown-i" in the pop-up dialog box to fill in the shutdown conditions, note that the addition of input 127.0.0.1, means to turn off the local computer. Then enter the appropriate time. For Windows vists or Windows 7 systems, the above command needs to run under administrator privileges. Point Start menu, in the "search Procedures and files" input box input cmd.exe, in the output list of the results found Cmd.exe, do not rush to double-click. Instead, you right-click and select in the menu to run as an administrator.