Many people are interested in the question of which antivirus is best suited for the new Windows 10 operating system. In this situation, you need to take into account factors such as the degree of protection of the PC and the impact on its speed. The experience of the independent company AV-TEST, which began studying the operation of antiviruses for the newest OS from Microsoft, will greatly help in resolving the issue.
As always, the question remains open: what will be better, a paid program or a free one. By the way, representatives of the laboratory practically did not work with free versions, but they also need to be mentioned, because most users use just such antiviruses.
Paid defenders
In this case, you can take the AV-TEST study as a basis and describe the best versions of operating system defenders. Taking into account the speed of action, the convenience of the interface and the actual fight against viruses, we can make the following TOP four:
- Avira version 2015 (now there is also 2016).
- Bitdefender (2015 and 2016).
- Kaspersky 2016.
- Norton 2016.
The products of F-Secure and Trend Micro fall a little short of the first positions, but at the same time they have good performance indicators. As a result, we get the six best options for Windows 10. Some programs are practically unknown to the average user in Russia, but have already earned worldwide recognition.
Avira Antivirus Pro
The antivirus from this company has always been famous for its convenient menu of use and the efficiency of completing tasks. According to the rating of independent experts, there will also be no problems with the degree of protection.
The new version of the program has the following functions:
- Virus protection.
- Internet protection.
- Firewall.
- Fight against malware.
- Ability to create bootable media to combat viruses.
- Game mode support.
- System Speed Up module (Speeds up Windows 10 and other versions of Microsoft products).
The company's official website can be found at Avira.com. At the same time, there is one small trick: if the user wants to get a trial version of the program, then it can be downloaded from the English-language version of the site; there is no such option on the Russian-language resource.
Kaspersky Internet Security
This product is well known to computer owners around the world. Typically, reviews about it are not always positive, but as tests say, there should be no complaints about Kaspersky’s work. The program works great on Windows 10 too. 
A significant advantage of Kaspersky compared to other antiviruses is its excellent interaction with Russian customers. Residents of the former countries of the Soviet Union are associated by software developers primarily with “pirates”, so they do not pay attention to them, but Kaspersky’s support service works well.
To begin with, it is recommended to use the trial version; it can be downloaded from the Kaspersky.ru website and will be valid for one month. On the same resource you can purchase a complete antivirus.
Norton Security
Norton is also very popular and every year receives a package of updates that make the antivirus even better. As the test results say, the program works quickly, and it really protects the computer from harmful files. 
There are also a number of additional functions:
- Firewall.
- The program will protect the system from spam.
- Reliable protection of personal data (for example, from payment systems).
- Like Avira, there is a function to speed up the OS.
You can get a sample or purchase the full version at ru.norton.com.
The rest of the three
The other three members of the stellar six, namely: Bitdefender, F-Secure, and Trend Micro, are quite similar, so separate long descriptions are not needed here. The only difference that should be emphasized is the lack of a Russian-language version of Bitdefender. 
Trend Micro antivirus is distinguished by its ability to protect mobile gadgets, as well as its parental control function. The program also has settings configuration for Windows 10, which increases the speed of operation.
F-Secure does not have parental control capabilities, but among the advantages of this product it is worth highlighting the presence of a safe search on the World Wide Web.
Bitdefender has been at the forefront of all ratings for many years. Among the obvious advantages of the antivirus are pest control, including on the Internet, as well as wide functionality. Customers also love Bitdefender for long-term trial versions; sometimes manufacturers offer up to 180 days of free use on their websites.
In any case, the user needs to choose, but if you need a high-quality defender and don’t mind paying money for it, then you should pay attention to one of these six options. Their effectiveness is confirmed not only by the experiences of professionals, but also by reviews of ordinary users of the program.
Free antiviruses
Like earlier versions, Windows 10 comes with Defender as standard. If earlier the defender was not taken seriously, now it is a completely solid antivirus. True, as before, the standard application cannot compare with other defenders. To put it simply, Windows Defender is quite suitable for normal operation, but when you often need to download files from some dubious resources, you will have to look for another way out. If you are not satisfied with the standard program, but there is no money to buy an antivirus, or you simply do not want to spend it, then you need a free option.
To the delight of such users, there are programs for which you do not need to pay to download and install. It is noteworthy that some free analogues are in no way inferior to expensive ones. Today, there are 4 such antiviruses that work perfectly with Windows 10.
Avira Free
This program protects your computer from a variety of threats; it also protects user data and guarantees the detection of virus files. 
Free Avira has advanced file protection and blocks a wide variety of Trojans, worms and other viruses. Another advantage of this program is the cloud scanning function; it carefully analyzes unknown data from the cloud.
Avast Free
As already mentioned, Avast is very popular, and this is largely due to the free version of the program. It features a simple and intuitive interface, as well as fast data scanning. 
In addition to fighting virus files, the program also protects your home network from hacker attacks.
AVG Free
Which defender should I install for free? Many experts will answer this question simply: AVG! It quickly detects malicious data. 
The program also has a function for scanning links and unsafe email messages.
Panda Free
An antivirus with a beautiful name and interface will also protect your PC from pests. A distinctive feature of the program is the “Recovery Set” function; it will help save the OS even in critical cases when the system refuses to turn on. 
All these programs work perfectly with the “ten”, all that remains is to choose the one you like best.
