How do I get a free spyware for my computer and antivirus software?

I went to this site and all of a sudden all these spy allerts came up and will not go away. They all want me to buy something and i'm sure if it's real or a scam for access to my system. Does anyone have any advice on getting rid of these alerts and how to get free security that is legitimate?

How do I get a free spyware for my computer and antivirus software?norton internet security 2008

You will need to run full anti-virus/spyware scan and clean your registry. I recommend you use these programs (they are free).

1) AVG anti-virus

http://free.grisoft.com/freeweb.php/doc/...

2) Ad-aware spyware remover

http://www.lavasoftusa.com/products/ad-a...

3) Spybot - Search and Destroy spyware remover

http://www.safer-networking.org/en/index...

4) CCleaner - registry and privacy cleaner

http://www.ccleaner.com/

How do I get a free spyware for my computer and antivirus software?spyware removal

I have three FREE programs that keep my computer really clean, except for the occasional piece of spam email, easily dealt with.

For anti Virus : Download : AVG Free Edition 7.5 from Grisoft.com; for anti spyware : Spybot Search %26 Destroy 1.4 ; and since thefree version of AVG has no firewall, Download(free) Windows Defender from the security section of Windows Market Place. Set the AVG to get daily up-dates on start up each day ; Spybot for 2 or 3am daily %26 Windows Defender should be put on auto up-dates. By getting these regular security updates, which describe new threats out there for your computer to recognize, when something comes along, it will block it. I do a weekly scan of AVG, %26 the same with Spybot.
Try http://www.avgfree.com %26 http://spybot.com Restore your system to an earlier time with system restore
Here is the best in my opinion and I use it at work home ext..