i heard it's really good VIPRE antivirus with purchased lifetime license, any thoughts on this?
Any program that carries its weight in gold and has a permanent lifetime license is great in my book! I've never had a problem with Vipre.
They also have
Vipre Rescue which is free, but I don't use Vipre products much.
Viper used to be highly recommended, but has been falling behind the last few years. Used to be a licensed distributor, but have since chose to distribute another AV product.
i used it before, because CCleaner installer gets very slow with VIPRE antivirus but CCleaner installer gets fast with Microsoft Security Essentials/Windows Defender, Avast, AVG or lightweight antivirus