Use Exclusions when Antivirus Software is Slowing your PC

Here’s a useful tip; especially if your brand new PC is running slower after installing antivirus programs …

It is essential to protect your PC with reliable antivirus software. The drawback to this is that it often slows the PC down. In some cases it does so significantly. Some antivirus software can be very thorough and scan “potential invaders” that are part of your normal applications. Many of these programs do not need to be scanned. This takes up processor memory and slows down all programs and applications in use. By customizing exceptions, you take away much of the slowing effect by allowing the antivirus program to know what it needs to scan and what it does not. This frees the processor for other tasks at hand.

Many applications are writing to the hard drive perpetually. By excluding the files and folders they are writing to or reading from, assuming they are assuredly trusted and safe, you will speed up PC processes and still have sufficient antivirus protection. Which files to exclude?

  • Subversion / TortiseSVN Folders
  • Virtual Machine Directories
  • Personal Photo/Video folders
  • Windows Update Folders
  • Connected Mobile Devices

These are just some examples. You may choose anything appropriate to your configurations. It is difficult to specify what files and folders to exclude for any given PC, considering the myriad configurations, software combinations, and uses that PCs will have. It will be a different scenario for everyone, but the approach is basic. This will work with any antivirus software program. In the examples below, Microsoft Security Essentials is being used. Other software versions may be appropriate for users. This is just an easier way to show how to work with antivirus software exclusions settings in general:

microsoft security essentials

2. Here you can browse all files and locations and include them, once identified, by clicking “Add.” This is a one by one process, but its simplicity and tedium should not be taken for granted. This approach helps you ensure that you do not include files that may be unsafe. There are a variety of ways to use exclusions for each different antivirus software type and all involve going to a Settings option. You may be given a scroll list to choose from once you have built a significant list of exclusions and this will allow you to change any of those exclusions as necessitated. With Microsoft Security Essentials, you can click the Advanced option and gain more generalized options for situations that may require broad, more generalized exclusions.

microsoft security essentials scan rules

It is always best to create a System Restore point before making changes to any software, but especially antivirus software. Also take steps to backup the files that you are planning on excluding. There are no guarantees from software to software and system to system. With a set restore point, you can always go back and undo something undesirable. Secure your settings and files first, and then alter your security.

© Melanie Gross for gHacks Technology News | Latest Tech News, Software And Tutorials, 2011. | Permalink |
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