I have avg antivirus 7.5,windows defender and windows firewall is this ok for keep my pc cleen?

i think of bying one off the top ones(kaspersky,nod 32 etc)anything recomended?i have pentium 4 dual core 3 gh asus graphics card 8600 gt 512 mb end 2 gb ram

I have avg antivirus 7.5,windows defender and windows firewall is this ok for keep my pc cleen?free spyware remobal

You have decent (not world-class) protection as it stands, but an upgrade to KAV or NOD32 would be a bit of an improvement over AVG.

But, you also need to keep ALL of your installed software fully updated and patched to avoid serious security issues.

Almost all viruses and other malware target vulnerabilities in not only your Windows operating system, but also your other installed software such as Java, Flash-player and Adobe.

When these vulnerabilities (or security holes) are patched, a virus can knock all day at the door of your computer but won't be able to infect it!

I strongly recommend the regular use of a free, online security tool called The Secunia Software Inspector, that scans a computer for un-secure, un-updated and un-patched apps that may be installed on your computer.

The Secunia Software Inspector checks for possibly vulnerable programs like Adobe, Winamp, Java, Windows, Internet Explorer etc. and notifies if critical security updates are needed. Takes about 30 seconds and the results might surprise you!