Thanks!!
Answers:
If you want a free anti-virus I recommend here proclaim (install singular one):
1. AVG Free
a. A simple interface (easier to use than Avast! and Avira)
b. Can detect going on for 82.82% of viruses
Cons: low virus detection
2. Avast!
a. Real-time protection
b. It have an substitute to delete a virus once found
c. Can detect in the region of 87.46% of virus.
Cons: Too frequent icon and confusing user interface
3. Avira AntiVir
a. It can detect malware better than Avast and AVG
b. It's cute umbrella icon
c. Can detect almost 94.26% of viruses
Cons: A exceedingly sluggish update
There is a pop-up blocker included near your Web browser. Remember, pop-ups are mostly cause by adware, spyware, and other mean and unwanted software and using pop-up blocker won't minister to an infected PC. Therefore you obligation to use anti-spyware to remove infections to prevent pop-ups. I recommend Ad-aware and Spybot.
I also recommend using FireFox, it's so much better than Internet Explorer.
NO anti-virus should ever be relied upon to bestow 100% protection. None of them do. Most merely detect around 85 to 95% of adjectives KNOWN virus. When a brand unmarked virus is released , NO signature-based anti-virus will detect it for several hours up to several days. And dozens of tentative virus and other malware are created respectively and every year.
The best computer deposit is that which resides between the the ivories and the stool!
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However, I would suggest Avira AntiVir(R) PersonalEdition Classic. It have excellent heuristics, a virus detection rate to be precise better than oodles of "paid-for" anti-virus programs and is flimsy on using your computer's resources. And did I mention that it's free!
Download here:
http://www.free-av.com/
Enjoy!