Once you read this material, the question "why isnod32 not updated on my computer" means the question does not give you rest. The problem is that most users are psychologically unprepared for viruses to appear on their computer that is protected by antivirus. But in most cases known to any specialist, Kaspersky or nod32 antivirus is not updated precisely for the simple reason that this action is blocked by malicious software. In addition to directly blocking updates, this infection can be manifested by severe braking of the OS, all sorts of glitches during operation, the browser may stop working. In severe cases, the computer starts sending spam, or creates a huge number of connections to other PCs (DoS and DDoS attacks from "zombie" computers controlled by a single center).
If your antivirus saved before the attack, the computer is infected and nod32, Avast, or another anti-virus program is not updated now, do not worry, this is not the end of the world. And for those who immediately begin to prepare for reinstalling the OS, advice - do not rush, it will always be in time.
First of all, you should check whether the changes blocking access to the site where the databases are located are made to the hosts file located at the drive C: \ Operating system folder (usually this is the Windows folder but the name can be any other) \ System32 \ Drivers \ Etc. This file should not contain anything other than the line 127.0.0.1 localhost.
If you removed everything unnecessary in this file, but this did not help, and nod32 still does not update you, then you will have to use additional antivirus utilities. There are many of them, but in this article we will consider only a couple.
The first option is Kaspersky Virus Removal Tool, a useful program that quickly scans the computer and cleans it of most known malicious visitors. In cases where nod32 is not updated, you can try downloading KVRT, if, of course, the same virus does not prevent you from doing this. But even in such a difficult case, there are friends to whom you can go with a USB flash drive and rewrite this software in such a circle way to your PC.
When the program is installed on the computer, you just have to click on the check button, then the program will automatically scan your machine and offer to reboot, if, of course, this is necessary. If after running this utility nod32 is still not updated, you will have to try the following option.
The second program is not so famous and popular, but nonetheless a very effective software product from Dr Web called CureIt. After you downloaded it, or brought it to you on a disk, flash drive or sent it over the network, you should run it for execution. After starting, the program will require you to confirm that it is running in protected mode, just give it what it wants, as stated on the manufacturer’s website - this will help the utility work more efficiently. So it presses “Ok” twice, when the scan window appears, click stop, click on the “full scan” item and after all these manipulations, we are again waiting for the launch.
That's all love, after checking with these two class-leading programs, your computer will most likely have to start up normally and start working, just like before. Ideally, the test is best done from under the Live-CD, but since few people know what it is, I will not give such advice. If you are interested in what it is - Live CD, then welcome to Google.
The benefit of this method of verification is that in a heavily infected environment, when the computer is already barely crawling, the scan can take a very long time, and under the Live CD everything will happen much faster, since the OS will not start from the infected hard drive, but from the DVD or CD-ROM, which, moreover, is also much more reliable.