I get high CPU usage when downloading on max speed with uTorrent if CIS's runnin

Help me, please.

The problem:
I get high CPU consumption when I download anything with uTorrent on my max speed (1.1MB/s) if CIS is running. Everything starts to lag sooo hard, that the whole computer becomes unusable at these moments.
This is not happening if I don’t have CIS running.

Some details:
The process manager shows that while CIS is running and utorrent starts downloading process and the speed raises - the “system” process starts to “eat” up to 20-25% CPU. Normally it doesn’t eat more than 5%, and I don’t experience that issue with CIS disabled.
I’ve added uTorrent to the “trusted applications” in CIS Firewall settings, so I expect that program not to be monitored at all, but why the hell it actually does? >:(
Windows built-in firewall is disabled.
The issue is happening both on Windows XP and 7.

To sum it up:
Removing CIS helps, but I don’t like Windows Firewall interface at all that’s why I’d like to go on using CIS, please help me!

Do you have inbound rules for uTorrent. These would be Global rules.

Here’s a guide Utorrent

I’ve created rules as it is said in the Manual, but it didn’t help.
System process eats 25%.

Which manual?

the one you gave me a link to in your previous post.

How many simultaneous connections do you have set in uTorrent?

Can you show the Firewall and Defense + logs of around the time uTorrent is running?

200 max, 50 per 1 torrent. But why did you ask? I have the same settings when I run it without CIS and it works OK.

Concerning log file - I wish I knew where does CIS save it to.

Just making sure it was not set to a crazy high setting.

Concerning log file - I wish I knew where does CIS save it to.
The firewall logs can be found under View Firewall Events. The Defense+ logs can be found under View Defense + Events.

To see logs from other days push the More button at the bottom.

Even if it was - it is still an issue of CIS, since I already mentioned, that everything works good with the same settings but without CIS running.

There are 0 entries about utorrent in both logs.


I am not sure what is causing this. So I will start with some basics to clear up the playing field.

Do you have another security program that is checking on access at the same time as CIS? Please disable or temporarily uninstall the program to see if that of influence of what is happening.

Next step is to make sure that there are no left overs of previously uninstalled security programs around. Not all uninstallers do a proper job. Left over applications, drivers or services can cause all sort of “interesting effects”.

Try using removal tools for those programs. Here is a list of removal tools for common av programs: ESET Knowledgebase .

Otherwise do a Google search with terms “removal tool” and * name of product or vendor*.

Ok, that’s right.

No I don’t. I don’t even use windows built-in firewall and UAC.

I had never yet installed any other security programs other than CIS (e.g. I had CIS once previously installed). Do you think I need to run the recommended (I remember I’ve seen somewhere around that site an util that cleans old installations’ junk) util? (linkmeplz)

Is this a clean install of CIS or did you update it from a previous version(s)?

In case you want to try a clean installation uninstall CIS, reboot use this unofficial clean up tool and try installing again.

Don’t forget to export your active configuration before uninstalling if you want to keep your settings.

It was a clean install after a regular uninstall.

I don’t think it’ll help, but I’ll try to do that tomorrow.

Just as I thought - it didn’t help at all. CIS is a lag-o-drome :-/

oh, and by the way - import feature is broken: it says import successful and nothing gets imported.

This sounds like a bug to me.Please consider filing a bug report in the Bug Reports - CIS board following the format as described in FORMAT & GUIDE - just COPY/PASTE it!.

When you imported the old config did you give it a name that is different from the default names? F.e.: Comodo Internet Security Imported Version. If you used one of the names of the default configs then it would not show up.

Yes, I used the same, default name. Why do I get know about this only after writing to the forum? Don’t you think you should warn users about that in the program itself?

If you had imported a configuration using the same name, you would have received a warning message (see image) The fact the your import seems broken and the problem you’re having will high CPU utilisation suggests a broken installation.

[attachment deleted by admin]

No, that’s a wrong suggest, as the problem happens with no importing too.