Windows 8 and 8.1 Forums

Exclude VM directory from HOST Virus scan Yes or No

  1. #1

    Hafnarfjörður IS
    Posts : 4,376
    Linux Centos 7, W8.1, W7, W2K3 Server W10

    Exclude VM directory from HOST Virus scan Yes or No

    Hi there.

    Can't seem to find any sensible consensus on this topic - and it never seems to be discussed so am I missing something here.

    If say I have a Windows Guest running its own AV software whether it's Windows defender or anything else then it seems to me that by having the HOST also running an AV software we are going to have two pieces of AV software running on the same data areas (the VM Disks).

    It would seem to make sense to exclude the VM directories from the HOST's AV scan when the VM's are running -- but I haven't seen any mechanism to dynamically turn off parts of the AV system -- it's either an ALL or NONE mechanism.

    I'm sure the performance of both HOST and GUESTS could be enhanced if AV software was ONLY running on the machines it needed to be - but AV software doesn't seem to allow for excluding certain parts of the machines.

    If I have up and running say 4 VM's - that's my normal usage - then on the Virtual Machine directory on the Host I could have 5 (yes FIVE) AV pieces of software scanning / protecting it (The VM directories / data areas) at all times -- I think even the most security conscious person on the planet would suggest that this is indeed grossly overkill. - The VM's of course need to be individually protected if they are on the Net.

    If you use VM's a lot (and I do) you want to get as much performance as possible out of them. As an individual I can't afford masses amount of hardware like enterprises have but I still want my VM's to run as efficiently as possible.


      My System SpecsSystem Spec

  2. #2

    I don't think it takes much time/cpu effort whatsoever to scan the couple of files that comprise a VM. I've never once even considered adjusting the AV on my host machine to exclude the D:\VMs directory that contain all of my VM's.

    My primary box at work that I run my personal VM's on is a Core i7-3770 with 16GB of RAM and about 5 hard drive spindles (all 7,200RPM). My work laptop is a Core i7 with 16GB of RAM and a 256GB SSD that I run some portable VM's on. My secondary VM box at work is a Core 2 Duo E8400 with 8GB of RAM and 2 hard drive spindles. I find these boxes to do a solid job of letting me experiment and learn in my labs before I move stuff to our real servers or most likely Amazon EC2.
      My System SpecsSystem Spec

Exclude VM directory from HOST Virus scan Yes or No
Related Threads
Have just run Emisoft Emergency Scan and it found 4 problems. It deleted 2 but could not remove or Quarantine 2 (see Attached). AVAST Failed to detect them. Are they dangerous? How can I remove them?56877
Robocopy and same directory in General Support
Hi With the Robocopy command of Windows 8.x, how do I do a copy of a file (renaming it) in the same directory of the source file? Thanks Bye
Quick scan & Full scan in System Security
As a practice if a Quick scan detects something I fix it & then run a Full scan & a boot time scan. Avast just detected 1 infection. When the scan is complete I will fix it & do as I stated above. I really should run scans more often, as should everyone. 46771
Help Appreciated. In a Windows 8 PC, User account is "Standard" and Administrator account is different, in which how can I exclude some application which is from asking administrator password to execute? My situation is specially for application updates such as java and/or adobe reader....
In Windows 8.1 you can stretch a background image across your multi-monitor configuration. There are free "panoramic themes" that MS makes available that specifically support multi-monitor configurations. I have a 3 monitor configuration and I only want to stretch it across two of the three...
Hi, I have win8 Enterprise. when i connection to internet two service with names service host: Network service and service host: local system download automatically, i thought that it relate to windows update but automatic update is off and my windows is up to date. what is the problem? what can i...
Eight Forums Android App Eight Forums IOS App Follow us on Facebook