Hello!
On Sunday, I had to replace a client's Norton AntiVirus CE on an old Dell Optiplex GX260 PC with an Intel Pentium 4/IV Prescott CPU, 512 MB of RAM, IDE Maxtor HDD, and an old updated Windows 2000 SP4 (IE6) due to its slowness (much faster without it). After researching and being told to try the latest Avast free/personal, I installed it and it seems to mostly work. However, there were a few problems.
I noticed AvastUI.exe likes to hog CPU (50% on hyperthreading Intel Pentium 4/IV Prescott CPU) when I access real-time shields option in Avast GUI program. I do see graphs gets updated. I can't exit or do much in Avast when this happen. I can't even kill it. Windows 2000 is almost very slow too. I have to wait a long time after clicking close/exit on it. I did not see any intense disk access. What's up with that?
I did also notice updating showed avast.setup hogging a little, but not horrible. I assume that's normal on a slow old PC.
I believe the PC has the latest drivers, but it's very old from early 2000s. Are there fixes for these CPU issues?
Thank you in advance.