Innocent people become pawns for the evil plans of others who've convinced themselves they're doing the "right" thing. To protect a computer from getting a virus, or clean a virus from a computer system once infected requires the use of an antivirus utility. But may be something else we can do. Since there can be quite a few components to take care of, let's talk about the most important one. The most important component of a computer's hardware system is its fan. The fan is located on the computer's CPU unit and when that thing gets clogged with dirt and dust, it can run down a computer faster than you can say, "Something's wrong with my computer and I don't know what it is! From Windows Explorer, click on the "Tools" menu, and select "File Options." Click the "View" tab and then uncheck the box next to "Hide file extensions for known file types." Click "OK" and you'll notice that the files in Windows Explorer show a dot and group of three letters after their names. Enabled by a username and password, individual desktop settings (icons, background picture, and other settings) are available after logging onto Windows. Display Properties. Through Display Properties, a user can change the background of the Windows Desktop, add a screensaver, change the overall color scheme and fonts of Windows, and adjust a computer's color depth and/or resolution (screen area). The last advantage that shareware has over commercial software (but certainly not the least) is its applicability. Plain and simple, shareware is the best bet when you want to keep on top of the latest release of a particular program. Sure, computer stores do their best to keep their inventory up to date, but when you can download version 5.6042 of a shareware program as opposed to buying a commercial 3.0 version from the local computer shop, there's just no comparison. Although they can't always be avoided, it's important to remember that computer errors can be corrected. The key is to understand what computer errors are, understand what they mean when they show up, and understand how to minimize their occurrence in the first place. Basically, computer errors are the result of a number of things that may or may not have anything to do with the way the computer is used.