I need some help on this, security on PC?

My security on PC is about to expire and the ISP has given me two costs for the security.

Standard package includes

anti virus, anti spyware, firewall protection for

拢2.49 a month

and

the Premium package is

拢3.49 a month for the above plus parental control and

spam filtering.

Firstly do i need any of this at all

Secondly Is there someone cheaper,

any suggestions most welcome

I actually think that this just shunts up the cost per month more and more and i have been unhappy with the provider almost from the start but as they say that's another story. .

I need some help on this, security on PC?aurora

First of all, never purchase security from your ISP. If you want a free anti-virus I recommend in order of popularity, but please choose the right one for you (install only one):

1. AVG Free

a. A simple interface (easier to use than Avast! and Avira)

b. Can detect about 82.82% of viruses

Cons: low virus detection

2. Avast!

a. Real-time protection

b. It has an option to delete a virus once found

c. Can detect about 87.46% of viruses.

Cons: Too many icons 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 about 94.26% of viruses