Two anti virus software on one computer, really bad?
Question: We have McAfee and my cousin who is not that knowledgeable about computers installed Norton Software. I heard 2 anti viruses are not good so I want to get rid of Norton. I am happy with Mcafee. But my cousin says its harmless and he's really paranoid about viruses. The Norton Security, I don't think it's active on our computer because its not showing on the tool bar, only on the desktop. So he wanted me to post this question and reassure me that two anti viruses are better than one. Please guide him! What harm will it to do the computer?
Best Answers: Two anti virus software on one computer, really bad?
It's not bad, but they really do not like having two per system. One, as most anti-malware programs have real time protection, you have twice the memory load on the system. Most anti-malware programs like to schedule scans late at night and usually assume that most people are asleep by midnight. So now you'll have two programs trying to scan the hundreds of thousands of files on your hard drive at the same time. And (for the person wondering where the conflict comes from) should both programs try to read and scan the same file at the same time, Windows lock-ups can ensue as one file is locked by one anti-malware's scan and the other demanding the full access to be able to scan it. Ok, so you're thinking, "It's slow...big deal!" This gets to be a problem if the scan that should normally take an hour suddenly takes 4-6 hours to do. And if the computer is off, many anti-malware programs will do a scan at the next time the computer turns on. You can change the scheduling, but most do not and so there is conflict. Now here's where the two can get into a peeing contest. Anti-Malware 1 (AM1 for short) finds something. By default, many programs quarantine the files in a protected section. This is done in case the file isn't REALLY a virus or other malware and you can teach it to ignore it. Example, I used a program known as Back Orifice to cheaply manage my network. It was free and considered by most AM's as icky. It could be since the powers and abilities of the program could be used to hack and infiltrate a network. Microsoft had a similar suite of programs, that did the same things (and could be subverted into evil uses as well) but cost hundreds of dollars. Back Orifice was free. So I had to go to each pc on the network (only 30 thankfully) and tell all of the AM's to ignore the program. Continuing on with the scenario... AM2 fires up a little later and does a scan. GASP! Malware is found on the hard drive and so it gets quarantined. Now AM1 does it's check and GASP! Malware! Must quarantine! And back and forth and so on...and on...and on... In short, it's not bad, but it can be a pain in the tuchas. A better solution is a good anti-malware program and a good firewall, either on your internet router or in software (zone alarm, Window's firewall, etc, etc). This will do more for you than two AM's fighting it out like cats and dogs.
No. Antivirus' arent even intended to remove the rogue programs... not even the paid ones. BUT the free version of Malwarebytes Anti-Malware will. Follow these instructions carefully. > Remove Security Shield: http://www.bleepingcomputer.com/virus-re...
One anti-virus program is as good as another, although some can be a little more twitchy than others when it comes to viruses. Having two or more installed creates conflicts because many of them keep viruses under "quarantine" if they cannot be outright deleted or if it's a fun variation not quite like what it's encountered before. One anti-virus program is enough strain on system memory as it is. Two is a waste of effort.
Any, repeat any anti-virus software which does not slow down your rig, especially when running a full scan, is NOT doing the job it was designed for - it's that simple. I run quick scans daily when doing other things, and full deep scans (overnight) weekly, just as I go to bed. Then there's no dragging issues!! Avast or Avira consistently receive the top reviews. Free and paid versions are available in both cases. I prefer Avast as it gives 'audio' alerts of threats, program and definition updates etc, etc, etc.
No, it's not a bad thing... One might have more features for catching and quarantining corrupted files, and the other might be able to repair... try out AVG, you can get it free also, kapersky is very good just never use a registry cleaner, it's like allowing a bum to cut into your temporal lobe... and I'm going to have to disagree with everyone that said it will harm your computer by causing conflicts... what conflict? what protocols do you think will be the cause of the conflict? some antivirus software deletes parent and child files... when you delete a file, it's never fully gone the first time you pass it by... there are remnant files which are partially deleted... a bunch of things leave behind a .exe file, which is the one you want to delete in the first place the only time that you'll notice a difference in the performance of you computer if you're running more than one is if you're running 2 simultaneous scans...
If you have a good anti virus you can uninstall windows defender. I would however make sure I had an anti malware program such as malwarebytes to run alongside the antivirus as this will protect you from spyware too. http://www.malwarebytes.org/ click on download now for the free version Make sure you have a good firewall too. Built into internet security suites but not usually packed with just antiviruses. Vista and win 7 have good firewalls XP one is rubbish
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