Posted on 2007-08-11
Last Modified: 2013-11-22
I have Windows Firewall, a hardware (router) firewall, and McAfee Firewall installed and running on my PC, which seems to slow it down.  Do I need to have all this security running concurrently?  This also holds true for spyware, etc.
Question by:Albert_Greenspoon
    LVL 77

    Accepted Solution

    Never hurts to have too much security, but duplication can reduce performance. I have found the McAfee and Symanetec security suites tend to reduce performance, especially Symantec's. McAfee is a good product, though behind a hardware firewall many will tell you you do not need a software firewall, it is good protection from a virus spreading internally over your local LAN. I would disable one or the other, the Windows or McAfee. McAfee will give you more protection than the Windows, but it will affect performance more.
    The same applies to Spyware applications. One is good, but multiple versions will affect performance and can even cause problems.
    LVL 87

    Assisted Solution

    Don't use more than one software firewall on your PC. I usually leave it at the builtin XP firewall, but if you need better protection, turn that off and use the McAfee version. Don't turn off the Router's firewall though, that won't reduce the PC's performance.
    LVL 65

    Assisted Solution

    McAfee Firewall is too mushc heavy for cpu usage and memory, get Free Zone Alarm if you are interested in using a third party firewall

    though i really feel that if you are a cautious user, using only Windows Firewall is enoguh :)

    Assisted Solution

    I agree with RobWill and rindi, the hardware firewall is likely sufficient, just ensure there isn't any firmware updates for it from the manufacturer that might close severe vulnerabilities... after that, and if you are extremely cautious, one software firewall is more than sufficient...

    The next version of McAfee is much faster and less intrusive... I'm participating in the beta found here:


    Write Comment

    Please enter a first name

    Please enter a last name

    We will never share this with anyone.

    Featured Post

    Do You Know the 4 Main Threat Actor Types?

    Do you know the main threat actor types? Most attackers fall into one of four categories, each with their own favored tactics, techniques, and procedures.

    The purpose of this Article is to provide information for a newly released variant of malware – with the assumption that many EE Members will have need of the information. According to “Computerworld”, well over one million web sites have been co…
    Imagine you have a shopping list of items you need to get at the grocery store. You have two options: A. Take one trip to the grocery store and get everything you need for the week, or B. Take multiple trips, buying an item at a time, to achieve t…
    Migrating to Microsoft Office 365 is becoming increasingly popular for organizations both large and small. If you have made the leap to Microsoft’s cloud platform, you know that you will need to create a corporate email signature for your Office 365…
    This video discusses moving either the default database or any database to a new volume.

    758 members asked questions and received personalized solutions in the past 7 days.

    Join the community of 500,000 technology professionals and ask your questions.

    Join & Ask a Question

    Need Help in Real-Time?

    Connect with top rated Experts

    11 Experts available now in Live!

    Get 1:1 Help Now