for a home pc you need..the basics

adaware http://www.download.com/Ad-Aware-200....html?tag=list

and spybot http://www.download.com/Spybot-Searc....html?tag=list

but be sure before you delete anything..took me 2 hours to make my g/f know how to clean up her pc ..and she still fucks it up

read all the google reports and you will be A OK

its better to learn,than to pay somebody to do it

just take your time