All about QuickHeal Antivirus 2011 This antivirus is the best antivirus for every operating system. The virus detection rate of this software is very high. It is able to protect the system from viruses, spywares as well as rootkit problems.There is low effect on the system speed So your system work fast. This antivirus cannot delete the effected file it can repair that file. The antivirus does not exert pressure on the memory, when the system is been scanned. Quick Heal Technologies was formed for catering the demand of highly reliable anti-virus software, which would successfully tackle the growing number of virus problems and give computer users reliable and affordable product option. It is very easy to download the antivirus go to www.quickheal.com click on download option and then you will select antivirus according to your requirement.