entranceIs it possible to install 2 antivirus. Two antivirus on a computer why it's a bad idea
Hello.
The number of viruses has long been calculated for tens of thousands and every day in their shelf only arrives. It is not surprising that many users no longer believe in the anti-virus base of some kind of program, asking for: "How to install two antivirus on a computer ..?".
To be honest, such questions sometimes ask me. Its thoughts about this question I want to state in this little note.
A couple of words, why you can not install 2 antivirus "without any tricks" ...
In general, take and install two antivirus in Windows - it is hardly possible (since most modern antiviruses check if another antivirus program is already installed on the PC and warns you about it, sometimes just an error).
If 2 antivirus still managed, it is not excluded that the computer will start:
Slow down (because double "check will be created);
Conflicts and errors (one antivirus will control the other, the appearances of messages with recommendations for the removal of one or another antivirus) are not excluded;
The appearance of the so-called blue Screen - ;
The computer can simply hang and stop responding on the movement of the mouse and keyboard.
In this case, you need to boot into safe mode (Link to the article :) and remove one of the antiviruses.
Option number 1. Installing a full-fledged antivirus + attending utility that does not require installation (for example, CURIT)
One of the best and optimal options (In my opinion) is to establish one full-fledged antivirus (for example, Avast, Panda, Avg, Kasperskiy, etc. -) and update it regularly.
In addition to the main antivirus on a hard disk or flash drive, you can store various attending utilities and programs that do not need installation. Thus, when suspicious files appear (or just from time to time), you can quickly check the computer with the second antivirus.
By the way, before launching such attending utilities, you need to turn off the main antivirus - see fig. one.
Holding utilities that do not need installation
1) Dr.Web Cureit!
Probably one of the most famous utilities. The utility does not need to be installed, allows you to quickly check the computer for viruses with the latest databases on the day of downloading the program. Free for home use.
An excellent utility that helps not only clear the computer from viruses and malicious programs, but also return access to the registry (if it was blocked), restore Windows, hosts file (relevant in problems with the network or viruses blocking popular sites), eliminate the threats and incorrect windows settings default.
Option number 2. Installing 2 operating windows systems for 2 antiviruses
Another way to have 2 antivirus on one computer (without conflict and failures) is the installation of the second operating system.
For example, in most cases hDD Home PC is divided into 2 parts: System disk "C: \\" and local disk "D: \\". So, on system disk "C: \\" Suppose already installed Windows 7 and AVG antivirus.
To get to this also antivirus Avast. - You can install another Windows to the second local drive and in it already install the second antivirus (I apologize for the tautology). In fig. 2 Everything is shown more clearly.
Naturally, only one Windows OS with one antivirus will be launched at the same time. But if doubts started and you need to quickly check the computer - then PC rebooted: chose another Windows OS with another antivirus and booting - checked the computer!
Installing Windows 7 from a flash drive :
Dispelling myths ....
No antivirus guarantees 100% protection against viruses! And if you have 2 antivirus on the computer - it will not give any guarantees from infection.
Regular backup Important files, an antivirus update, removing suspicious letters and files, the use of programs and games from official sites - if not guaranteed, then minimize the risk of information loss.
I have everything on the topic. If anyone has more installation options 2 antiviruses on a PC - it would be interesting to hear them. Good luck!
To help computer teapots ": the conflict of two antiviruses and the full hang of the OS after loading (how to solve the problem, if after loading the OS does not respond to anything).
Conflict of two antiviruses on one computer
Almost all "kettles" are confident that if you set a lot of a lot of antivirus programs, then no viruses are scary! Well, the Lord-comrades, if everything was so simple, the topic of combating virtual pests would be closed again 20 years ago. But it is not.In the sense, you are mistaken: it is impossible to install even two antivirus on one computer. Why? Yes, because absolutely all antiviruses conflict with each other! And, believe me on the word: the problem from such a conflict is not very better than the problem from the virus.
And, by the way, I already wrote that I could not install. Well, now directly to the topic.
So, you "flashed" by the mind and precaution and installed two antivirus on one computer. Or, you removed one antivirus and installed another, but for the first antivirus you forgot to remove some remnants: folder or files.
As a result, immediately after rebooting OS, you, with surprise, noticed that the cursor though runs across the screen, but no icon on the "desktop" responds to the team. In addition, a strange loading process is constantly next to the cursor: the system is shipping something, but what exactly is not clear.
And it happens that even the cursor does not move: this is called "dead hanging". The most amazing thing is that the multiple reboot of the system, by pressing the "RESET" button, does not solve the problem.
The system reboots, but the problem remains. What to do? Reinstall the system? Question: Can you? You are "kettle"! Yes, and the system is not necessary to reinstall, because everything is solved very simply. So!
What if you installed two antivirus on one computer and the operating system hung
We take any disk and insert it into the drive. O-PA: The system has moved from a dead point! Now, without losing time, we go to the "Control Panel" - "Installing and Deleting Programs" and remove any of the two antiviruses.Note: After deleting some antiviruses, the system can report that not all and something you have to be deleted manually. Delete! How to find? Very simple: "My Computer" - "Search" tab - fit the name just remote antivirus and wait for the search for the search.
All found by removing. Drive remove, reboot the computer. Yes, and one more. At the time of rebooting (at the very beginning, when the screen only went out and remains dark), we start to fasten the "F8" button: so you will open the "secret" menu of the OS boot options.
And in this "secret" menu, you need to select the download option with the latest efficient parameters. The selection is made using the arrow keys. We highlight the desired line and click the "Enter" key. All: Now your computer is working fine, without brakes.
And remember: None nor even three antivirus will protect your computer 100%! Just smaller swing all sorts of torment from muddy sites, and for adult sites "shake" do not need. And the point here is not in pornography as such, but in the fact that it is on these sites that you can pick up a whole "bouquet of virtual" venereal "sores", like "backdors", "rootkits" and "MBR-locker".
Antivirus program is a special kind of software, the function of which is detection and neutralization computer viruses and potentially malicious programs. In addition, the antivirus allows you to prevent the infection of the computer. The user offers many variants of antivirus programs distributed both paid and free. These programs differ in different functionality and work mechanisms, as well as the effectiveness of prevention and control of viruses.
Principle of operation of antivirus
Almost on each computer installed this or other antivirus softwareHowever, some mistakenly believe that an increase in the number of simultaneously working antiviruses will ensure more powerful protection. To understand why this is a delusion, you need to figure out the mechanisms of operation of antivirus programs.
Do not forget to regularly update viral databases so that your antivirus can identify "fresh" viruses.
To search for already infected with viruses, the so-called signature method is used, the essence of which is that the antivirus compares the contents of files with viral databases, trying to find compliance. If they are detected, the program is trying to "cure" the file, that is, remove the excess content from it - the body of the virus. The prevention of infection is based on continuous monitoring of program activity in order to prevent malicious activities of viruses and protect the system from infection. Most antiviruses work on a combined basis, that is, in the mode of monitoring activity, and in mode.
Why doesn't it mean - better?
Naturally, even the work of one antivirus is capable of affecting the speed of the computer, since the scanning of the files loads the hard disk, and monitoring is the RAM and processor resources. Even if we assume that both antivirus simply work in parallel, the load on the resources of the computer increases twice. Unfortunately, in fact, it is still more difficult, since the antivirus program does not perceive its "competitor" as an antivirus, considering it ordinary applicationPerforming on the computer, therefore, she seeks to control and its work too. For example, if one antivirus starts the background scanning of files, the second will be forced to "monitor" its operation in the process, as well as scan the proven files, which will further affect the speed of the computer.
Any antivirus is not ideal, so "false" responses and an attempt to block knowingly harmless programs are quite possible.
In some cases, antiviruses are able to conflict, taking each other for potentially dangerous programs. For example, if one antivirus tries to "cure" an infected file, then the second will not give him to do this, as it will be sure that an attempt to infect the virus. Antivirus conflict can lead to an operating system freezing and need forced reboot. In addition, such double control in practice leads to a weakening of protection, since a significant part of the resources of antiviruses spend on check each other, and not to search for viruses. Therefore, it is much more practical to establish one powerful antivirus with the necessary additions than act according to the principle "the more, the better."
Some users, taking care of their computers and personal data, come to a solution that you should install two antivirus on one computer or, more precisely, to establish more than one antivirus.
They believe that if one antivirus misses some threat, then the second one will defectly protect it. Is it really?
Of course, no anti-virus program will give a 100% guarantee of protection against viruses, leakage of personal information and other threats. But the installation of two antiviruses on one computer is a very bad idea.
As practice shows, this approach to the protection of the computer does not work. And it's not a competition, as many may seem, but in incompatibility of antivirus programs.
On one computer "do not get along" several antiviruses, even if they are developed by one company. They will interfere with each other's work, conflict, and the computer will hang, or will stop working at all.
The reason lies in the fact that any antivirus tries to control all processes on the computer. Antiviruses analyze and monitor many operations: reading and writing files, analysis of system processes, work with rAM, Network traffic and so on.
Therefore, if two or more antivirus are installed on the computer, they will try to get full control over the system, interfering with each other. As a result, the computer begins to hob, and system resources It will be disastrously missing for normal operation of any application.
In addition, each of the antiviruses may well try to block some of the other files by defining them as potentially dangerous. And this is not a competitive struggle of program developers. From the point of view of protection of the system, any antivirus performs many suspicious operations.
As you can see, you can install two antivirus on one computer, but, alas, it will not increase the level of protection and even can harm the computer. If there is a suspicion that your antivirus looked through a dangerous file and the system is already infected, it is better to go to another way.
How to additionally check the PC using the second antivirus
For one-time testing of the system, special solutions have been developed, for example, Dr.Web Cureit!.
Dr. web Cureit. The official website is located at http://www.freedrweb.com/cureit/?lng\u003dru
A program called the attending utility is downloaded for free of charge from the above-mentioned Dr.Web site.
Fig. 1 Description of the use of Dr.Web Cureit anti-virus utility!
After downloading the program named Dr.Web Cureit! Do not install, it is enough to just run the double click of the left mouse button (see Fig. 1), more.
Also this utility is also Kaspersky.
It is called kaspersky Security Scan. and is located at http://www.kaspersky.ru/security-scan. You can download it for free from the official site Kaspersky, double click left-click, and check the computer (see Fig. 2)
Fig. 2. Startup window of Kaspersky Anti-virus utility
These free anti-virus utilities check and treat a computer, without interfering with the work of the mainly installed on the PC antivirus, and do not conflict with it. After the end of the treatment check, these programs can be safely removed from the PC, simply moving them to the basket. It is very useful from time to time to check their computer, even if there is a complete confidence that the installed main antivirus performs its functions flawlessly. God saves man, who save himself.
About antivirus programs in new computers
When buying a new computer (laptop, tablet, etc.), antivirus program can be installed in it. The user of the new computer may not want to further enjoy this "imposed" antivirus.
For example, in new computers often install antivirus Mcafee.. If there is no desire to use it, but instead, establish, for example, antivirus, then you need to take care about previously installed antivirus It was removed from the computer.