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Consumer Products => Avast Free Antivirus / Premium Security (legacy Pro Antivirus, Internet Security, Premier) => Topic started by: dobbin on November 09, 2003, 09:22:49 PM

Title: incompatible antivirus?
Post by: dobbin on November 09, 2003, 09:22:49 PM



I used Avast with  NOD32, AVG, Antivir PE, BitDefender without problems.
I had problems when I used Avast and Norton Antivirus.  
Do You know if there are any problems using Avast and others antivirus?

dobbin

Title: Re:incompatible antivirus?
Post by: igor on November 09, 2003, 09:45:23 PM
Generally, there are many problems if you run two antiviruses (including their resident protections) simulatenously - and I'm quite sure it doesn't concern avast! only.

So yes, it certainly is very dangerous to run avast! together with Norton Antivirus (or AVG, for example). If you turn off the resident protections of all but one antivirus, then it should work - but according to users' experiences, it's often quite tricky to really disable the resident protection of some antiviruses.
Title: Re:incompatible antivirus?
Post by: dobbin on November 09, 2003, 10:04:23 PM
I always disable resident protection when I  install a new antivirus.
But sometimes this is not enough.
I think that  many people use two antivirus on their PC and I am interested to know if there are any problems.

 dobbin
Title: Re:incompatible antivirus?
Post by: Lisandro on November 09, 2003, 10:53:51 PM
I always disable resident protection when I  install a new antivirus.
But sometimes this is not enough.
I think that  many people use two antivirus on their PC and I am interested to know if there are any problems.

 dobbin

Had the same problem with Norton that I removed.
Remove Norton is one of the most difficult things in earth...

Oooohhh, noooooo.... Norton again!!! Get away from it!!! Do not install more than one antivirus program (resident). Norton is the monster of the monsters... Never gets out of the registry... unless a lot of work can be done... But be happy, I´m here because I get rid from Norton, after Vlk and Kubecj precious help, lot of lost hours... But I´m here, I´m avast! To get rid from Norton is one of the most difficult things in the earth!
The main reason installation fails or systems freeze when using new AV programs is the inablility of the old ones to uninstall properly. I have had to dig up removal tools for Norton before anything would operate properly. This is not an avast issue, Kaspersky, McAfee and even Grisoft (e-mail plugin) have their own unique uninstall issues as well.

I post the 'saga' here (http://www.avast.com/forum/index.php?board=2;action=display;threadid=1687).

Take a deep breath  8)
Title: Re:incompatible antivirus?
Post by: Waldo on November 09, 2003, 11:02:24 PM
Running 2 Av's on 1 pc gives most of the times havoc.

Even if you manage to "really" disable the resident guard of one of them.

If you really want a good backupscanner use : Bitdefender 7 Free (wich doesn't contain a guard).

But a smarter thing to do is, to run a online scanner from time to time.

Pc Cillin :

http://housecall.antivirus.com/housecall/start_corp.asp

RAV :

http://www.ravantivirus.com/scan/indexie.php

There always updated and work just as good as the "full version" (for a on-demand scan).

I personaly don't recommend Panda's online scanner because the virus signatures of this one, can give fals alerts when using your main scanner (Avast). Although it's detection is very good (Panda) i would stay away from it.

Kind regards,

Waldo
Title: Re:incompatible antivirus?
Post by: dobbin on November 09, 2003, 11:06:57 PM
to Technical

the "saga" is very interesting. I usally use two antivirus on my Pc.
The best results it seems Avast + NOD32.dobbin
Title: Re:incompatible antivirus?
Post by: Lisandro on November 09, 2003, 11:09:29 PM
to Technical

the "saga" is very interesting. I usally use two antivirus on my Pc.
The best results it seems Avast + NOD32.dobbin

No dobbin, listen what Waldo said: do not use two simultaneous antivirus... His suggestion of BidDefender 7.0 Free is the best (see links for downloading here (http://www.avast.com/forum/index.php?board=1;action=display;threadid=1509;start=0).  ;)
Title: Re:incompatible antivirus?
Post by: dobbin on November 09, 2003, 11:16:58 PM
to Waldo: thanks for your post. I also use online scanner.
I have used BitDefender 7 free,but, if I remember, this antivirus have the resident guard.
Anyway I haven't any problems wih Avast and AVG and Antivir PE with have resident protection.
In my opinion if resident protection is disabled problems may be only with some antivirus (McAfee? PC Cillin?).dobbin
Title: Re:incompatible antivirus?
Post by: Lisandro on November 09, 2003, 11:23:19 PM
to Waldo: thanks for your post. I also use online scanner.
I have used BitDefender 7 free,but, if I remember, this antivirus have the resident guard.

No, the Free version do not have an 'active' resident guard. See settings, the option is disabled  8)

Anyway I haven't any problems wih Avast and AVG and Antivir PE with have resident protection.
In my opinion if resident protection is disabled problems may be only with some antivirus (McAfee? PC Cillin?).dobbin

No, I don't think so... Windows Registry could have difficulties to handle two antivirus simultaneously right... You may have just a 'felling' of security and not security itself. I do not recommend two antivirus in the same system. Make a search on avast! forum for this thread...  ;D
Title: Re:incompatible antivirus?
Post by: dobbin on November 09, 2003, 11:27:54 PM
No, I don't think so... Windows Registry could not handle two antivirus simultaneously right...

Why?
Title: Re:incompatible antivirus?
Post by: igor on November 09, 2003, 11:37:56 PM
I personally think it's not a registry problem... registry can hold many things simultaneously.
However, problems (conflicts) occur on the low level - file system filters etc.
Title: Re:incompatible antivirus?
Post by: dobbin on November 09, 2003, 11:43:33 PM
I personally think it's not a registry problem... registry can hold many things simultaneously. Sometimes conflicts may be on the low level - file system filters etc.  But, in my opinion, sometimes.
Avast is a well known product. I think  many people may be used two antivirus on is PC.
Title: Re:incompatible antivirus?
Post by: Lisandro on November 10, 2003, 02:16:50 AM
I personally think it's not a registry problem... registry can hold many things simultaneously.
However, problems (conflicts) occur on the low level - file system filters etc.

Thanks Igor, you're right and I'm wrong. I edit my last post: Windows Registry could have difficulties. I do think this. Read my posts about Norton x avast (there are lots of posts about this).
Waldo is right too. But, of course, dobbin, you can think diffent than us...  ;D

Take care, see you round...  ;)
Title: Re:incompatible antivirus?
Post by: Lisandro on November 10, 2003, 02:24:20 AM
Some related forums about the use of two antivirus simultaneously (in this case AVG and avast). Listen Vlk (our guru  ;D): http://www.avast.com/forum/index.php?board=2;action=display;threadid=195;start=msg839#msg839

A seach in forums (or at www.wilders.org) will send you to a lot of explanations...  ;)
Title: Re:incompatible antivirus?
Post by: dobbin on November 10, 2003, 06:13:32 AM
Thank you for your replies and advice.
Title: Re:incompatible antivirus?
Post by: techie101 on November 10, 2003, 06:22:27 AM
dobbin,

You seem determined to have 2 AVs online.  Well, I can understand having a backup, but listen to what has been said here.
It is difficult for 2 AVs to run resident at the same time.  Conflicts are inherent not only in low level scanning, but in consumtion of resources.

Norton is well know for the difficulty in uninstallation mainly because it "builds" itself into so many areas of the OS.  It striates the registry and you really need to know what your doing to get it out.  Add in the fact that a second AV is trying to "navigate the registry at the same time" and you end up with one bits and bytes battle.
Technical was attempting to explain that in his own way when he said that the Registry can't handle 2 Avs.  He certainly did not mean usage wise.  He knows better. I know his ability well and sometimes he can't say exactly what he means.  Norton itself does not like other AVs hanging around either.

I have used and tested just about all the AVs out there and never have I found the need to use more than one.
I will on occasion use the Kaspersky online to check a file that is suspicious (detected by Avast) but did not choose to use Panda because it downloads a small "os" of its own so that it can scan and view your computer files.  Never liked that much.

One of the best freeware I used in past years was Innoculate by Computer Associates.....stable, reliable and detected just about everything.  However, it is no longer supported.

Bitdefender is quite useful if you really feel the need for a "manual" anti-virus, but let's clarify things since you did not mention which Bitdefender you were using:  Bitdefender comes in 3 flavors: Free, Standard and Professional.
The Free version does not use Resident guard.  RG is used in either Std. or Pro.

Anti-vir gave me stability problems with W98 so I canned it.
McAfee is over-rated in my opinion.

Anti-virus software is really a user choice.  Like a suit, if it fits good and looks good to you......then keep it!

Good luck,
techie101

PS:  I have registered copies of Avast Home for my W98 and ME machines, and run Pro in my XP.  All systems function perfectly!     and ALONE.  ;)
Title: Re:incompatible antivirus?
Post by: raman on November 10, 2003, 08:01:03 AM
Do You know if there are any problems using Avast and others antivirus?

If you make a costuminstall of avast and install onlyscannerand updater it should work fine. After a restart you maybe have to disable some startups from Avast.  Aast works fine here with many other installed AV-Software.

What resident scanner do you use?

BTW: A hijackthis log (http://mjc1.com/mirror/hjt/) of your  computer  would be nice.
Title: Re:incompatible antivirus?
Post by: dobbin on November 10, 2003, 09:48:30 PM
This is a misunderstanding. I usally have one antivirus resident and another scanning on demand. I had problems with Norton so I thouhgt
there were other antivirus thy cold give problems. Thanks.