thanks for the quick reply the one The I tried so far is avira antivir 10 and that took up anywhere from 40% to 70% of the cpu at any given time and haven't tried a firewall yet also i have heard that a lot of false positives occur using avg when i was sifting through varies web forums have you had any trouble with false positives?
MS SE doesn't support any OS before XP unfortunately.
I think you'll have a hard time getting modern security applications to work well on an older machine with those available resources. avast! and Avira are typically less resource intensive than AVG of late, and if Avira caused a performance hit, I'm not sure you'll find something to use.
avast! stated requirements:
* Processor Pentium 3, 128 MB RAM, 100 MB of free hard disk space
* Microsoft Windows 2000, Microsoft Windows XP/Vista/7 (32/64 bit)
Avira stated requirements
For Avira AntiVir Personal to work perfectly, the computer system must fulfill the
– Computer as from Pentium, at least 266 MHz
– Operating system
– Windows 2000, SP4 and update rollup 1 or
– Windows XP, SP2 (32 or 64 Bit) or
– Windows Vista (32 or 64 Bit, SP 1 recommended)
– Windows 7 (32 or 64 Bit)
– At least 100 MB of free hard disk memory space (more if using Quarantine for
– At least 192 MB RAM under Windows 2000/XP
– At least 512 MB RAM under Windows Vista
– For the installation of Avira AntiVir Personal: Administrator rights
– For all installations: Windows Internet Explorer 6.0 or higher
– Internet connection where appropriate (see Installation)
As we all can attest, stated requirements are not always the most accurate reflection of real world implementation.
ClamWin is an open source, lightweight AV, but it's on-demand only, not a real-time protection application.
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