Why did the U-disk unplug the computer and shut it down?

One-Touch U-Disk system is one of the most common system installation methods, after installation, some users will pull the U disk after the direct computer shut down, this situation is very troublesome. So why did the U-disk unplug the computer and shut it down? In fact, this is a reason, specifically, please see the following small series of detailed explanations.

The picture below shows the screen when the computer shuts down when the U-disk is unplugged:

The main reasons are as follows:

1, u disk poisoning, so inserted into the computer after the virus into the computer, after unplugging directly caused by computer poisoning;

2, the USB port and the circuit between the motherboard has a problem, the U-disk unplug the time will appear error signal and thus caused the computer's direct shutdown.

The specific solution is as follows:

1, the computer restarts after the safe mode, the U disk Antivirus, and then the computer for a comprehensive anti-virus treatment;

2, try the rest of the USB socket, if the rest of the socket after the normal, then the USB port and the motherboard between the circuit failure, this time to get a repair shop for maintenance.