Four steps to secure your computer

You can greatly enhance the security of your PC by simply using the following four steps to protect your computer as necessary.

　　Install firewall--the computer's anti-theft door

The firewall is the first layer of computer Internet protection, it is between the computer and the Internet, like a computer security door.

A firewall can be software or hardware that can check information from the Internet or the network, and then block or allow this information to enter the computer according to the firewall settings. Firewalls help prevent hackers or malicious software (such as worms) from accessing computers over the network or the Internet.

　　Install antivirus software--the policeman stationed at the computer

Relative to the firewall, antivirus software is the second layer of computer protection means, its role is much like the internet computer hired professional police. For a variety of reasons, even if you have a firewall installed, the virus is still possible to invade your computer, at this time, antivirus software can be real-time alerts, active defense and release threats to protect your computer from infringement.

Important reminder: Antivirus software generally updates the virus library daily to find the latest virus, please make sure that your anti-virus software can automatically update the virus feature library. If you use an expired virus library, antivirus software does not guarantee your computer's security.

　　Timely repair of operating system and application software vulnerabilities-the weak back door of the computer

The vulnerabilities of operating systems and applications are like the backdoor of a weak computer, where viruses and malware can take advantage of this fragile backdoor.

The Windows operating system commonly used by users and the various applications are inevitably vulnerable to vulnerabilities that can be exploited by malicious programs to exploit users ' computers. QQ Software security group through the theft of Trojan monitoring data analysis found that for repeatedly infected with the Trojan computer, the vast majority of the operating system has been found loopholes.

How do I fix an operating system vulnerability?

By keeping your Windows Update turned on, Windows will automatically fix the system vulnerabilities for your computer (non-genuine Windows will only get Emergency repair services), and you can periodically scan system vulnerabilities with professional system vulnerability repair tools such as QQ doctor. In addition, QQ software will automatically help you scan the stolen Trojan horse to exploit the emergency system vulnerabilities, and according to your settings prompts repair. For more information see operating system vulnerabilities

How do I fix an application software vulnerability?

The latest statistics show that malicious programs also use common applications such as multimedia playback software vulnerabilities to invade user computers. In this respect, users should develop the habit of regularly updating commonly used software, as far as possible to ensure that the most frequently used software is the latest version. In addition, when you receive a software upgrade prompt, you should try to update the software program as soon as you follow the prompts.

　　Regularly cleans up spyware--harmful junk in the computer

Spyware is secretly installed into a user's computer in some way (such as illegally bundled in a non-genuine software) without the consent of the user, so as to achieve the purpose of profit (such as publishing ads). Spyware can cause your computer to run slowly, maliciously tamper with important settings on your computer, and users cannot even uninstall certain spyware properly.

You can use Anti-spyware to regularly clean up spyware, which is usually free.