Anti-Virus
These tools are used to detect and remove viruses that have infected a computer. They can be scheduled to run a scan of your computer at a specific time, or a scan can be manually run at any time. All anti-virus software should be updated on a regular basis to ensure any new viruses can be detected. Most, if not all, of the software tools listed here can be set to automatically check and download updates. Also, ensure that only one anti-virus tool is installed, as more than one can cause problems.
- McAfee
- Norton
- AVG (free)
- Trend Micro (online)
Anti-Spyware
Spyware is a major cause of computer problems, including slow-downs, processor usage and application crashes. Some of the spyware can be very dangerous to have on your computer as they can also send information from your computer over the Internet. Along with anti-virus software you should also install anti-spyware software to help keep your computer clean. Unlike anti-virus software, you can install many anti-spyware applications on you computer. I encourage you to do so as one application may not clean all spyware from your computer.
- Adaware (free)
- Spybot – Search & Destroy (free)
Software Firewall
The software in this category is becoming more important, especially now with always-on broadband Internet connections. Software firewalls are your last line of defence to your computer from the Internet, and the first line from your computer to the Internet. They are used to keep the viruses and spyware from getting in your computer, and if they do get in, prevent them from sending information out to the Internet.
Defrag Utilities
Fragmentation can be a problem if you install and uninstall applications, or simply add and delete files. When a file is removed from a computer, and another file is added, then it may fill up the space used by the deleted file. If the new file is larger than the previous, then it may be split into parts and stored throughout your hard drive. This means that your computer will have to look in different places on your hard drive to read the entire file. Defragging a hard drive will put all the pieces of a file next to each other so your computer doesn’t have to spend time retrieving the entire file.
- Windows defrag (included with Windows)
- Diskeeper (http://www.diskeeper.com)
- PerfectDisk (http://www.raxco.com/products/perfectdisk2k)
- JkDefrag (free) (http://www.kessels.com/JkDefrag)
Scheduling and Updating
To assist with maintaining your computer, you should perform the following tasks at the suggested time.
| Application Type | Schedule |
|---|---|
| Anti-virus | Weekly |
| Anti-spyware | Weekly |
| Defrag | Monthly |
It is important that you keep your anti-virus and anti-spyware applications up to date. To make is easier for you, you may be able to have the applications automatically download the updates for you, or have them download the updates when starting the application.
Along with the anti-virus and anti-spyware applications, it is also important to ensure you have all the latest security updates for your operating system.
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