Windows XP shutdown and automatic restart solution

Because Windows XP system uses a high security NT kernel, the system runs fairly stable, except for the slow shutdown speed, under normal circumstances, there are few shutdown failures. But sometimes when you shut down Windows XP, it is inexplicably and automatically restarted. This fault may be the most likely to occur in the Windows XP operating system shutdown failure.
The cause and solution for this fault are as follows:
1. System error causes automatic restart
By default, Windows XP system will automatically restart when there is an error in the system, so when the user shuts down, If the system has an error during the shutdown process, it will automatically restart the computer. If this feature is turned off, there will be no automatic restart failure.
The specific method is as follows:
Right click on the desktop “My Computer”, in the pop-up context menu, select “Properties>, pop-up  System Properties” window, click “Advanced & rdquo; tab, click the "Start & Fail Recovery" button in the "Settings" button, pop-up "Start and Recovery" window. In the “System Failure” column, remove the checkmark before the “Automatically restart” option, and click the “OK” button.
2. USB device problems
Today's various USB devices are very popular, such as: U disk, mouse, keyboard, stereo, mobile hard disk, etc., countless. But often these USB devices cause shutdown failures. When your computer shuts down and restarts, if you still have a USB device attached to your computer, immediately unplug it and try again. If you find that the USB device is faulty, then it is best not to connect the device to the computer. If you can't avoid using a USB device, you can connect an external USB hub and connect all USB devices to the USB Hub. Instead of connecting directly to the USB port of the computer motherboard. This problem naturally disappears.
3. Advanced Power Management
It is well known that shutdown is closely related to power management. The cause of shutdown failure is probably caused by poor power management. If this is the case, you can try the following:
Click “ Start → Settings & Rarr; Control Panel & Rarr; Performance & Maintenance & Rarr; Power Options & rdquo;, in the pop-up window, enable or disable as needed ; Advanced power support & rdquo; If you use "Enable Advanced Power Support" in the event of a failure, try to cancel it. Conversely, if the computer is using the cancel "“Advanced Power Support" in the event of a failure, then you try By enabling it, failures are often easily ruled out.
The above three methods are all summed up in the daily work. When you really encounter a similar situation, it is best to first check the problem and then solve it. If you have any other situation or a good way to solve the problem, welcome everyone to discuss it.