Hi all friends !
Therefor I want to purchase new antivirus software by online payment .
The thing about anti-virus and internet security software is, that no matter which one you use, none of them are 100%.
I would recommend Kaspersky (Kaspersky Lab United States | Antivirus Computer Security), I've been using it for 4 years now, I haven't had any troubles. It updates daily, its interface is user friendly, it has many tools to improve the security of your PC, and best of all, it lets you use your PC the way you do in piece.
Give me suggestion what is best antivirus. ??
I'd also recommend looking for Internet security, the difference between Anti-virus and internet security is that internet security has a built in firewall and instead of letting threats come straight into your system, it has a chance to get them before reaching your system.
If you do internet banking or use any confidential information online, I'd go for a paid anti-virus or internet security, although free versions do there job, you'll most likely find that they don't have built in firewalls, and if they do they'd be useless.