How to know whether a website contains virus?
Usually, any computer program, including virus, can not install itself or modify computer system without the permission of the Firewall of an Operation System (Firewall). Generally speaking, if a website does not trigger a Firewall query：do you allow the program to modify your computer? That means the website does not have a virus. If you get this query without executing any program, clicking “not allow” can stop the program. But some application programs may close the system Firewall.
Through decades of upgrading, computer systems are very safe now. The chance of getting a virus can be as low as zero if you don’t download and execute vicious programs. Even though there might really exist extraordinary virus, they probably would not be used for general purposes.How to open the Operation System Firewall ?
The default Firewall of an Operation System is the most powerful tool to protect your computer. Any modification to the system would trigger the firewall query: Do you allow the program to modify your computer? But some anti-virus software may close the Firewall. Therefore, if you do not see this query for a long time, you need to check whether the Firewall is closed. Restarting the Firewall is as below:
Start > Control Panel > Firewall > Open or close the Firewall > Open Firewall > confirm.
What is a firewall?
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