If you don't want to spend money on antivirus software, you can use free antivirus software. The effect is also very good.
Completely free antivirus software recommendation:
1.Avast！ home edition
Alwil company from Czech Republic has a history of 17 years. It specializes in security-related software and developed Avast! Antivirus software has always been in a leading position in foreign markets. Alwil is confident that high-tech companies do not necessarily exist only in Silicon Valley!
Since' 96, Avast! Won as many as 50 industry awards. Among them, only the virus bulletin VB 100% won 14 times, and in 2005, it not only obtained the certification of ICA laboratory, but also obtained the stability certification of Microsoft. Now this software has a Chinese version.
Home address:/thread-973-1-1.html.
Key application addresses for each version.
P version 180-day key application address:
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9. Ink writer:
Mohist security expert is a permanent and free immune security protection software, which integrates the powerful functions of Mohist's original "separation", free antivirus for life, repairing system loopholes, cleaning up online traces, network firewall, real-time system protection, and safe mutual assistance community. In particular, the original "isolation technology", using the function of authority management, can effectively prevent the security risks that firewall and antivirus software can't identify, and put an end to the invasion of viruses from the source, thus improving the security threshold of the system and truly providing all-round system security protection for every user.
Official website:/
1 1. Anti-spyware Toolkit
1, software introduction
The anti-spyware toolkit specializes in killing and assisting in killing all kinds of malicious codes (spyware, worms) such as Trojans, rogue software and backdoors using Rootkit technology. Provide a variety of professional tools, provide system IE repair, privacy protection and security optimization functions, and provide a comprehensive system monitoring function, so that you can know the changes of the system like the palm of your hand, and with manual analysis, you can kill unknown malicious code nearly 100%!
1), the anti-virus ability is enhanced, and it can completely rival commercial software.
China's first completely free antivirus engine protects you from viruses;
Fully compatible with other anti-virus software, the system takes up less resources, so that you can freely double insurance your computer;
Comprehensive killing panda incense, Viking, grey pigeon, my photo, robot dog, AV terminator, ARP virus, pilfer date trojan and other popular viruses.
2), real-time protection and active defense, so that you can avoid the trouble of stealing numbers and cards.
Key position protection, program behavior and network behavior monitoring make the latest viruses and trojans have nowhere to hide;
It is used by 900,000 online users every day, and the real-time protection function is stable and reliable;
3), patch inspection and automatic repair, and manage your QQ, storm, thunder and Lianzhong vulnerabilities together.
The first application patch inspection and repair in China can directly close the existing vulnerabilities before the formal patch;
Comprehensively investigate operating system vulnerabilities, accurately provide the required patches, and the download speed far exceeds the official upgrade;
4) Powerful and intuitive analysis tools allow you to have a critical eye for analyzing viruses and Trojans.
Computer experts' favorite virus and Trojan analysis tools, you can also indulge in them;
Check startup items, processes, services, ports, etc. , and highlight unknown items, and prohibit intimate design such as process creation;
5) Free auxiliary functions superior to commercial software.
ARP firewall contains all the functions of other similar charging software, with good protection effect and low performance impact;
System optimization, system repair, file shredding, one-click IE repair, privacy cleaning and other functions, only one software is installed, with full functions.
2. Main features
1), a general automatic Rootkit solution, can detect all kinds of trojans and backdoors hidden by Rootkit technology without using traditional feature codes.
2) Fully detect hidden processes, hidden services and hidden ports.
3) Automatically detect and repair related errors of Winsock SPI chain.
4) Restore the system kernel service description table, display and remove the kernel function of the hook, and automatically restore the kernel function of the inline hook.
5), the original fast matching algorithm, the fastest scanning detection under the minimum system resource occupation level.
6) The scanning module and the real-time monitoring * * * use the same copy of the engine and the library in the memory, which greatly reduces the occupation of system resources and enables the modules to work together efficiently.
7) The organic combination of memory scanning and static analysis early warning system.
8), based on the broad spectrum characteristics of Trojan family, vigorously improve the virus detection rate.
9) Forward-looking active defense monitoring system to comprehensively detect unknown Trojan horses.
10), the first in China to support NTFS data stream scanning, which makes the detection more thorough.
3. Main functions
Heuristic early warning, startup management, IE plug-in management, SPI chain automatic detection and repair, Rootkit detection, service management, hidden service detection, filtering Microsoft default service, service addition and deletion, SSDT (service description table) recovery, process management, hidden process detection, forced uninstallation of DLL module, hidden port detection, disconnection, remote IP location, WHOIS query, port closure, IE repair, rogue plug-in immunization. Malicious website screening, system garbage cleaning, intelligent scanning, file shredder, software uninstallation, system optimization, system repair, right-click virus detection, vulnerability inspection and repair, system diagnosis report, forum rescue, heuristic scanning, NTFS data stream scanning, signature analysis, program execution permission, application firewall, comprehensive scanning, memory scanning, directory scanning, trust list, real-time monitoring and intelligent upgrade.
Official website:/