Simple questions

I have a laptop whose McAfee antivirus just expired, now i need to download one off of Warez-bb and use it.
1)Which antivirus is the best for my Dell inspiron 1545, with Windows Vista, 4GB ram.
2)Do i have to format my C drive before installing antivirus? Please explain whether after formatting i should install the anti-virus.
3)I have hiren’s boot CD will that simplify this process?
Answer #1
1 ) Avast
2) No ofcourse you dont have to reformat
Answer #2
1. Avira (free) + Malwarebytes (free)
BTW Windows 7 > all
2. Why would you do that?!
3. WTF?
Answer #3
The most user-friendly anti-virus, which it sounds like you might need (No offence) is Microsoft Security Essentials..
If you want a paid more feature full anti-virus try kaspersky or eset nod 32…
Answer #4
1. Microsoft Security Essentials
2.you won’t need to format your pc but you need
to uninstall any other antiviruses in your computer
before installing microsoft security essentials
3.i have no idea what is that
Answer #5
Avast or Avira would do
Answer #6
I agree with shifty27,Microsoft security essentials would be a good choice,But do keep in mind that no anti-virus
can provide 100% protection and due to this reason it’s very important to have a secondary layer of defense (and by that
I mean a firewall),Windows own FW is a joke and not worth using,Comodo is the best,Also,Additional measures of defense
include common sense (only download from topics that have lots of replies of example) and avoiding Internet Explorer,Better
use Firefox or Chrome as these are are much more secure,IE has way too many vulnerabilities,Surely these are patched every
now and then,But you can’t always keep up,In contrast,There are no special security patches for Firefox & Chrome,They just
release new versions to fix em (and it get’s automatically updated on your PC)
Answer #7
Roberto400 replied: Additional measures of defense include common sense (only download from topics that have lots of replies of example) and avoiding Internet Explorer
When asked what the best AV was that uses the least resources, I think bb05 nailed it!
bb05 replied: CommonSense 2011 lifetime upgrades free
Answer #8
Uninstall mcafee
1) free avast and free malware bytes
free avast:  http://www.avast.com/en-gb/index
free malware bytes:  http://malwarebytes.org/
2) No
3) No
Answer #9
Avast Internet Security (search in appz section)
No, you dont need to
IDK
Answer #10
1. avast free, or pro
2 no
3 hirens would be to repair hd, utilities for lots of things, would have nothing to do with installing software