Hello:
Unfortunately, Robin is correct about MSE running on older Win XP PCs.
I have an AMD Athlon XP 2200+ CPU, 1 GB RAM, and 100 GB HD (that's in
desperate need of some free space) from Christmas of 2002.
MSE at times sucks up major CPU cycles, such as running above 90% CPU
utilization according to the XP Task Manager, often running at 98-99%. It
also is using about 70 MB of RAM. And a full scan of my system takes at
least 14 hours. I don't know the exact time, as MSE does not show the total
scan time (that I've been able to find), but I've seen the in progress time
as long as 14 hours. (I like to run a full system scan overnight while I'm
sleeping and have it done when I wake up and want to check my email. And MSE
does not have a "Pause" button that would allow me to temporarily stop the
scan, read and write some emails, and then resume the scan.)
While MSE may be a great product for newer systems with higher horsepower, I
don't care for it on my older system. So I'm going to revert back to the
light and quick Avira AntiVir for now.
Cheers,
Jerry