constant scanning slowing system

I have a desktop and I have my laptop networked to it . I use the laptop in the living room while I watch tv. I normally use it for the web and file sharing. I have noticed lately that after about an hour my system slows down at times, my resources peak and normally it is when avast seems to constantly be scanning something. It practically freezes everything until avast stops scanning. (Over 700 meg of memory and virtual is set to 2 Gig) I turned off each provider trying to determine the issue. I have totally stopped the network shield at this time … it might have helped a little.

Question:
Does the standard shield on my laptop scan harddrives that I share over the network and the actual harddrive on my laptop in the background. Or is it only watching the laptop harddrive. I ask because I have recently added network access to a few usb harddrives I have connected to my desktop.

Also, what is the best setting for the auto update interval?

I disabled the DRVB also to see if it helped.

Just trying to get things under control without turning off avast.

Which process exactly was using the resources?

Standard Shield scans only the files that are accessed (read/written/executed), it doesn’t scan the whole drive on background. So, unless you have some disk operations in progress, it shouldn’t scan anything.

What is your laptop OS ? - if you have an older OS like ,win9x or winME the resources and amount of RAM or Virtual memory aren’t always the problem, but the 64KB memory allocated to certain resource info.

The VRDB only runs once every three weeks by default, so I thing it is unlikely to be that. If it were you would see the ‘i’ icon on the system tray spinning.

What you have to identify is what is causing avast to scan, enable ‘Show detailed info on performed action’ this will show what files are being scanned and hopefully an idea of what program.

http://img.photobucket.com/albums/v325/for-dwr/ShowDetailedAction.jpg

What is the sensitivity do you have standard shield set to (default is Normal), increasing this will obviously scan more files.

Thanks for the suggestions on this problem. I didn’t think that files were being scanned in the background but I wanted to make sure. I put my network in the exception lists to see if that helped any. I am running win xp sp1 and I have the sensitivity set to normal.

I turned on the “detail tab” and I’ll watch that. It should identify the issue. Is there a way to actually log these actions so I can study them later or do I have to read as it is scanning? Some of the info goes by pretty quick. Thanks for the help.

In the Professional version of avast!, it’s possible to edit the “Resident protection” task and enable the creation of the report file. Actually, the report file is probably turn on by default, but you can let everything (even “OK files”) be included there and study the report later.