A computer virus is a set of computer instructions or program codes compiled or inserted into a computer program. It destroys computer functions or data, affects the use of computers, and can replicate itself. It is called a computer virus. It is destructive, reproducible and contagious.

There are several reasons why computers are prone to poisoning: 1. The computer has many loopholes. 2. The program version is low. 3. Some information of non-antivirus or unknown websites has been downloaded.

I want to give you some advice on virus prevention:

1. Install professional anti-virus software (360) to thoroughly scan and kill viruses on the computer. (Note: Be sure to upgrade the antivirus software to the latest version before antivirus; After upgrading the antivirus software to the latest version, you must disconnect from the network. Otherwise it is possible to activate the virus. )

2. Use 360 security guards to fix system vulnerabilities.

3. Antivirus the downloaded data for three times. (Note: Be sure to upgrade the antivirus software to the latest version before antivirus)

4. Don't log on to some strange websites.

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