Author Topic: Pb Avast 5.0 and W7 64bits torrent  (Read 20436 times)

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Offline baudav

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Pb Avast 5.0 and W7 64bits torrent
« on: February 20, 2010, 03:55:52 AM »
Pb after few day (without shutdown W7), can't launch software, can't open file, can't launch task manager, can't open session if lock, can't shutdown! only close open software.

Same Pb after few hours if use utorrent to download and share.

No problem after uninstall Avast 5.
I have tested in 2 computers! same pb with Avast 5.
« Last Edit: March 23, 2010, 02:33:53 PM by baudav »
AV:free COMODO internet security (removed avast! too problem+too bad adv+ privacy problem) - W7 64bits - Chrome beta - IPv6 - TeamViewer - NAS Synology

Offline Lisandro

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Re: Pb Avast 5.0 and W7 64bits
« Reply #1 on: February 20, 2010, 07:35:49 PM »
Any other security program or antivirus installed?
Is your computer virus free?
The best things in life are free.

Offline baudav

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Re: Pb Avast 5.0 and W7 64bits
« Reply #2 on: February 21, 2010, 08:05:59 AM »
no other security program, and virus free... same problem with new install of W7 64bits (default install), no upgrade, no other security program install before.
AV:free COMODO internet security (removed avast! too problem+too bad adv+ privacy problem) - W7 64bits - Chrome beta - IPv6 - TeamViewer - NAS Synology

Offline baudav

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Re: Pb Avast 5.0 and W7 64bits
« Reply #3 on: March 07, 2010, 11:53:04 AM »
no solution ? no update ? 5.0.418 is latest ?

without AVAST (uninstalled), computer work fine... utorrent, ftps alldays without shutdown... now more than 12 days.. with AVAST only 4 hours; with AVAST disabled only 1 days!

only one solution:
You know other good free AV, for W7 64 bits, and have quarantine ?
AV:free COMODO internet security (removed avast! too problem+too bad adv+ privacy problem) - W7 64bits - Chrome beta - IPv6 - TeamViewer - NAS Synology

Offline logos

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Re: Pb Avast 5.0 and W7 64bits
« Reply #4 on: March 07, 2010, 11:55:04 AM »
the must be something wrong with your W7 install, I never had such problems. Which version of W7/64 are you using?

edit: you can try this version (454), but i doubt that will solve your problem...
http://forum.avast.com/index.php?topic=56551.0
« Last Edit: March 07, 2010, 11:57:01 AM by Logos »
w7 - ais7

Offline baudav

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #5 on: March 07, 2010, 12:01:27 PM »
W7 Ultimate, DVD is original, and in 2 computer same problem if I use torrent. New install: less than 26 days now!
Perhaps you not use your PC more than 2%.. and How long time do you use Windows before reboot or shutdown?


edit:
thanks for link ;)  I go to test
« Last Edit: March 07, 2010, 12:06:33 PM by baudav »
AV:free COMODO internet security (removed avast! too problem+too bad adv+ privacy problem) - W7 64bits - Chrome beta - IPv6 - TeamViewer - NAS Synology

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #6 on: March 07, 2010, 12:09:57 PM »
Quote
Perhaps you not use your PC more than 2%..
;D :D
w7 - ais7

Offline Darth.Mikey

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #7 on: March 07, 2010, 12:18:10 PM »
I suspect the problem is in using uTorrent and having the p2p shield scan everything. This is a known problem with the p2p shield and uTorrent. Disable uTorrent scanning in the p2p shield section and report back.

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #8 on: March 07, 2010, 12:35:21 PM »
I suspect the problem is in using uTorrent and having the p2p shield scan everything. This is a known problem with the p2p shield and uTorrent. Disable uTorrent scanning in the p2p shield section and report back.

yeah I heard of this too but the OP mentioned he had other issues in Win7 when Avast5 was installed, ie launching software etc...and anyway utorrent is un-ticked by default in the p2p shield.
w7 - ais7

Offline baudav

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #9 on: March 07, 2010, 12:46:43 PM »
I test beta; if not work, I uninstall only P2P field.
I think disable not work; If I disable AVAST (all, and finish monitor process; but without uninstall and stop AVAST drivers) I have problem after one day with utorrent. (perhaps less, but I not see in the night if system accept RDesktop)
AV:free COMODO internet security (removed avast! too problem+too bad adv+ privacy problem) - W7 64bits - Chrome beta - IPv6 - TeamViewer - NAS Synology

Offline Darth.Mikey

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #10 on: March 07, 2010, 01:08:04 PM »
Some more info on the uTorrent issue.

Quote from: Vlk
This is by design. Basically, µTorrent scanning in avast is suboptimal and we decided to turn it off by default (this applies to both Normal and High sensitivity levels). To be more specific, if µTorrent scanning is on, and you're using uTorrent to download large files, ashServ.exe will hog your CPU. This is because uTorrent closes/reopens the target file after transmitting every chunk, forcing avast to keep rescanning it periodically.

That's right, we have removed uTorrent from the default settings as we're unable to efficiently cover it and still prevent the CPU usage spikes (that take place when downloading especially large files).

Cheers
Vlk

It really depends on what you're downloading. uTorrent keeps closing/reopening the files in transit, and on each such occasion, avast rescans them. If the files are huge it can take a long time.

Thanks
Vlk

@Logos: I know what he said but since he also said this is happening on two computers while torrenting i suspect he indeed has enabled the uTorrent p2p shield in avast, could also be he is running the shields at HIGH. From what i have been able to tell he actually has 2 issues: 1. the uTorrent problem and 2. system freezing and unrelated to nr.1(this one is the harder one to diagnose). There is also this thread which may or may not be related:
http://forum.avast.com/index.php?topic=55674.0

@baudav: We need the following info from you:

Which version of avast! are you running ?
Do you have the uTorrent scanning enabled in avast!'s p2p shield ?
Is your system OCed ?
Is your system clean from infections ? (do a scan with avast! and MBAM) http://www.malwarebytes.org/mbam.php


Offline baudav

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #11 on: March 07, 2010, 01:41:41 PM »
Avast version 5.0.418 (now I test 5.0.454 with default setting, and wait for result)
first time, I enable utorrent in P2P shield; 2nd time I have just install avast and wait (to send memory dump to avast).
I see with 5.0.454, utorrent is disable in p2p shield.
OCed = OverClocked ? no
Systeme is clean

I download only movie with utorrent in the test
AV:free COMODO internet security (removed avast! too problem+too bad adv+ privacy problem) - W7 64bits - Chrome beta - IPv6 - TeamViewer - NAS Synology

Offline baudav

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #12 on: March 08, 2010, 11:31:46 AM »
same problem with beta; and utorrent is disabled in p2pshield !
AV:free COMODO internet security (removed avast! too problem+too bad adv+ privacy problem) - W7 64bits - Chrome beta - IPv6 - TeamViewer - NAS Synology

Offline baudav

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #13 on: March 09, 2010, 02:57:56 PM »
with only 'agent de fichier' (files shield) same problem !!!
AVAST 5.0 not work on Windows 7 64bits !

perhaps same problem if I use VMWare (not tested without AVAST)
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Offline Vlk

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Re: Pb Avast 5.0 and W7 64bits torrent
« Reply #14 on: March 09, 2010, 03:17:23 PM »
Are you using the Free AV, or the full Internet Security suite?
The firewall in the IS used to have some issues with μTorrent but these were supposed to be fixed already some time ago.

What does the Task Manager say on the Performance tab, Kernel Memory section?

Thanks
Vlk
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