If your System is infected by virus,Trojans and Spywares how many anti-viruses,Antispyware are solving the problem,Here I am giving the list of Anti-Viruses ,Anti-spywares which are Free of Charge.

1.AVG Anti-Virus Free Edition

AVg anti-Virus Free editionAVG is Providing free Security Solutions to your PCs which is Providing Free Antivirus,Antispyware and many more.Despite AVG is free it will not Provide any Support as in the case of Licensed Versions.AVG anti-Virus Free edition is applicable to single PC only.

2.Avast! Antivirus Home Edition
Avast Home Edition easy to Use .Which also gives Protection from Viruses.
Update is available.

3.AVG Anti-Spyware Free Edition
AVG Anti-Spyware provides Security from Various spywares from being installed into your computer.

Update :AVG Anti-virus free edition now included with anti-spyware.

4.Windows Defender
Microsoft’s Windows Defender will protect your PC from various spywares,threats.
However WGA check is required to install, if you are Using Genuine Windows you can Download it Freely without any worries.

5.Ad-Aware 2007

All Security Vendors these days Providing antivirus,Anti-Spyware and Internet Security Suits.

Ad-Aware 2007 provides Spyware prevention provided you have to update them regarding your needs.Without Updating Antivirus,Anti-Spywares they can not Identify them.