Cause of windows security updates 13/10/10

Avast is auto updated several times a day if and when needed.
So is MSE if needed.

Dont get me wrong, I do agree for a free solution MSE is likely one of the better ones and I mean no disrespect but I am curious about this.

Even though its possible, wouldn't running 2 real time scanners side by side be a performance hit on the PC?

Its nice they can work together but is really a good idea?
What I mean is:
It seems to me that the 2 side by side may cause a larger performance hit on the HD that a single AV.

And in some cases I think some of the paid suites offer more protection and addition features at a much lower system impact, than 2 running together?

What I mean is, lets say you launch a program.
MSE scans it 1st and then Avast scans it. Right?
Its safe so everything is fine.

Something like Norton for example may say
"Oh yea, I remember that. Its totaly safe. It was scanned at install & double checked on the cloud. It hasnt changed since so Im not going to do anything right now."


But back to my original question.
Would these 2 side by side not cause a a lot more HD activity than is really needed slowing things down from time to time? Or am I missing something.


I also agree that Malwarebytes is a excellent app on any system, regardless of your AV preference. Even if just for On-Demand scanning.

I don't notice any problem with performance using both.
I have the Avast Internet with the firewall etc.
Already had it before installing Win 7.
I would go with the Windows firewall if using the free Avast.

Here is my processes running and Res Mon.

If I had a barely passable to use Win 7 puter then using one AV might be more practical.
Most everything I have read you really need about 4GB of ram for Win 7 so put it to use.

I still run almost 1800 on Pass Mark running the memory on Auto in bios not XMP.
Runs up to about 1500MHz under load at 1.5v.
XMP is 1600MHz at 1.65v+ at idle voltage jumps over 2v under load.
Better performance slighly but more voltage stress on the CPU.

Up to the user I guess.
Mike

I will add that I have no proof two AV are better than one AV but my weekly Malwarebytes scans have never found anything. It works and that is all that matters to me.

Carl:
Do you know of any other exceptions or is Avast the best of the lot?

Hoppy:
Is the updating on Avast, for the free or paid version?
The most I've ever had MSE update was twice a day, sometimes only once.

Wishmaster:
I'm not certain, but I think I had something like your norton example happen to me back before I cleaned the bloatware from our machine.
After I closed the browser all heck broke loose with our desktop icons, and I had to do a reinstall from the recovery partition.

As far as slowing things down...I don't know about Avast, and I'm not sure about MSE, but I think MSE will halt processing when demand on the CPU reaches a set point.

We would have to start a new thread to document benchmarks, such as Hoppy's 1794.4 .
The way this conversation is going maybe we should.

Hoppy:
Is the updating on Avast, for the free or paid version?
The most I've ever had MSE update was twice a day, sometimes only once.

The Free and Pay are the same AV. The paid gives you the firewall.
Updates are the same. I've been using Avast since 2006.