You are infected with spyware if:
* You see too much pop-up advertisements.
* Your browser has toolbars that you haven’t installed.
* Your homepage has changed (and you can’t change it back).
* Other settings have changed without your permission.
* Your computer is slow.
To get rid of spyware and keep your computer clean you can use an antispyware or even more.
You can download a antispyware software. There are 10 good anti-spywares.
here is the reviews: http://toptenantispyware.com/
You can download one and scan your system.
All are safe and can be trusted.

There are two that are well-known and highly recommended.
The first: Ad-Aware 2008http://www.download.com/Ad-Aware-2008/30…
The second: MalwareBytes Anti-Malware http://www.download.com/Malwarebytes-Ant…
Download and install both of those and run a scan on each. If anything is detected – remove it immediately. You should be fine after that

get malwarebytes from isohunt.com
why isohunt ?
because it has this software cracked ! means you get additonal benefits.
with the use of a good torrent downloader like bitcomet , u can achieve it or
get it from
http://rapidlibrary.com/download_file_i.php?qq=malwarebytes&file=7563693&desc=Malwarebytes++Anti-Malware+Full+.rar

all free:http://www.download.com/Malwarebytes-Ant…http://www.download.com/SUPERAntiSpyware…http://download.norman.no/public/Norman_…

i had spyware on my PC before but Avast Antivirus Home found it and deleted it.
http://www.avast.com/eng/download-avast-home.html