How to remove virus from computer for free

Removing a computer virusand, as a rule, consists of three stages: is installing antivirusthat can remove malware, a virus scan with a thorough scanning of hard drives, removal of viruses found. At all stages it is likely to face difficulties organized by the creators of the viruses.

Instruction

1. Malware is often protected from attempts to install an antivirus program immediately deleted the file which it owns. This happens even during the installation of the program. To avoid this problem you either need to boot into safe mode (hit F8 during restart), or to boot from the startup disk after setting the BIOS to DVD drive first in the boot order.
2. In the next stage, it is possible that after scanning all the hard drives that you a virus is not found. Maybe the virus is very new and not yet entered into the database of the antivirus program. In this case, search the Internet antivirus that do not need to install and which fresh database with virusmi.
3. In the third stage you can deal with the fact that the virus can "fit" into a program that you need. If antivirus can't remove malware from need, you will have to remove both. The variant in which the virus has infected the file. Usually copies of such files there. If there is any doubt, it is better to seek help of a specialist who will be able to save your file. Can also be infected files from the operating system itself. In this case, it is likely that it is easier to reinstall than to remove viruses from files. Thus it is necessary to copy all the necessary files from the hard drive and format it. These copied files should be thoroughly checked for malware and delete them. Otherwise most likely there will be another infection.