I have WIndows XP service pack 2 and need anti-virus. My microprocessor(Celeron) has 996 Hz and I have 128 MB of RAM and I have 2.72 GB of FREE space. I previously had Norton Internet Security. I have a free cd of Norton ANti-virus, but it says I have to have 256 MB of Ram. If I had Norton Internet Security 2007 and I believe it requires 256MB of RAM too, then can I use my cd of Norton ANti-Virus? If not, any recommendations?Honestly Norton will slow down your computer and there are much better free alternatives.

Antivirus Click here
Suggested options are EITHER Avast, AVG or Avira.

Firewall Click here
Suggestions are Comodo, Sunbelt or Zone Alarm. (zone alarm can be heavy on resources so keep that in mind)

Note: If you choose Comodo it must be run in Advanced Mode to provide full protection. Basic mode is strongly NOT suggested.Straight to AVG's site is: http://free.grisoft.com


From here, http://free.grisoft.com/doc/download-free-anti-virus/us/frt/0
I see:

Minimum system requirements

* CPU Intel 486 133 MHz
* 30 MB free hard drive space (for installation)
* 32 MB RAM



RAM is pretty inexpensive these days...if you add another 512Mg. you, XP and your machine will be alot happier.Quote

RAM is pretty inexpensive these days...if you add another 512Mg