Basic protectection it is free: Microsoft Security Essentials, Spybot and ComboFix (Optional)

Enable restore point: it can be used to restore the date before the system is infected
Apply batch from microsoft: block the port 135 and so on for security and malware infected
Enable firewall: To prevent malware to come in to your system
Then install 2 anti-virus it is free:
- Download and Install Microsoft security essentials (Real time running)
http://www.microsoft.com/security_essentials/default.aspx
- Download and install Spybot (Real time running)
http://www.safer-networking.org/en/spybotsd/index.html

OPTIONAL WHEN INFECTED:
Usually each anti-virus is good for one think
- ComboxFix (need to scan some time for NT AUTHORIZE system is shutting down and others)
http://www.bleepingcomputer.com/combofix/how-to-use-combofix
- F-Secure Online Scan (should run in safe mode with internet connection for malware like Internet Security 2010 virus/malware)
http://www.f-secure.com/en_US/security/security-lab/tools-and-services/online-scanner/
-Malwarebytes' Anti-Malware
Download and run MalwareBytes AntiMalware to remove Internet Security 2010. Very good for Internet Security 2010 malware.
http://www.malwarebytes.org/mbam.php
Note: Norton Security 2010 for Win 7 is very good detected the website has Internet Security 2010 malware. It does not allow the infected size to write into the system it pops up the small windows to let you know. My XP was infected with this website
when searching for music, and click into
Unchained Melody Chords (ver 3) by Righteous Brothers @ Ultimate ...
Unchained Melody chords (ver 3) by Righteous Brothers at Ultimate-Guitar.Com, added on June 17, 2009.
http://www.ultimate-guitar.com/tabs/r/righteous_brother/unchained_melody_ver3_crd.htm

if your system does not have protected as soon as you visited this website,
Click any of these 3 links see picture with make your systems infected with malware internet security 2010, it will always go to this website (hijack your browser) first it downloads a pdf file called IS2010.EXE-19036254.pdf into C;\windows\prefetch
and infected from there. I am using F-security online and Malware-bytes to get rid of IS2010 Internet Security 2010 malware.
- Ad-Aware From Lavasoft
http://download.cnet.com/Ad-Aware-Free-Anti-Malware/3000-8022_4-10045910.html?part=dl-ad-aware&subj=dl&tag=top5
- Hijackthis to find out about malware to save log file for hijackthis log analyzer
http://download.cnet.com/Trend-Micro-HijackThis/3000-8022_4-10227353.html
- Spybot S&D for Malware such as CoolWebSearch
http://www.safer-networking.org/en/spybotsd/index.html
- Trojan remover
http://www.simplysup.com/tremover/download.html

I have used Combofix, Spybot (Realtime scan), Ad-aware, Trojan remover (from http://www.simplysup.com) and hijackthis for 2 years proved to be good.
Now I added 2 more in the list:
Malware-byte and Microsoft security essential (Realtime scan).
msconfig

Service and Task

Things needed to have: