How can i install free antispyware for my computer?

today my computer showed a message that the windows is infected and it would itself install a antispyware if i clicked there but when i clicked there i could not do it i donot have antivirus system in my computer so please help me .from where can i install free antispyware

How can i install free antispyware for my computer?trojan

That itself is spyware, dont install or even click on that!

D/L ad aware %26 spybot to help cleanup your PC

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

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

How can i install free antispyware for my computer?abtuvurys 2005

Here %26gt;%26gt;%26gt; http://www.ewido.net/en/download/

And you MUST get Anti Virus too %26gt;%26gt;%26gt; http://free.grisoft.com/doc/2/lng/us/tpl...

and a firewall %26gt;%26gt;%26gt;%26gt; http://www.zonelabs.com/store/content/co...
www.download.com search from adaware, install and run a sweep..
http://www.pctools.com/spyware-doctor/?r...
Look for Windows Defender or Spybot.

Some people say Ad-aware isn't that good...
This site has a good list of free antispyware you can download.

http://www.basicspywaretips.com/
Try ad-aware removal personal, from http://www.lavasoft.com
Download AVG free version for anti-virus, it is the best! Also, Lavasoft Ad-ware SE Personal and Spy-bot is also good software for anti-spyware. Another good recommendation is Zonealarm firewall. All these software are free and can be downloaded at www.download.com. Do a daily software update and a weekly deep scan will ensure you your computer is free of everything!
Go to Cnet.com and search for Ad-Aware Personal Edition SE and then download it for free. It is rated one of the best by Cnet and others. It is by Lavasoft, Sweden.
Go here http://free.grisoft.com/freeweb.php/doc/...

Its AVG and is a great free antivirus software. Click on download free version (half way down the page in orange). once downloaded, install it and is quite simple to use. Make sure you update it once a week to get the latest threats.

Hope this helps.
for spyware protection

www.lavasoft.com

adaware se personal

its free

get update, reboot and do a full scan

updates weekly or so

spybot also is a good choice

i would advise you to get a good anti-virus

free online scan

www.housecall.trendmicro.com