How to Replace a Virus-Infected Hard Drive
Computer viruses can cause a significant amount of damage to the files on your computer, sometimes causing your entire operating system to have to be replaced. When faced with a severe virus infection on your hard drive, sometimes it can be easier to simply replace the hard drive so that you can get your computer working again right away without a lengthy backup and formatting process. Luckily, replacing your virus-infected hard drive is easy to do and should only take you a few minutes from start to finish.
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Shut down your computer and unplug it. Press the power button once after the computer has been shut down in order to drain any power that may still be held in the power supply or the motherboard; this will help to prevent accidental shocks and possible damage to the system that could result from electrical discharge. Remove the side panel of the computer case by unscrewing the thumb screws on the back of the case. Slide the side to the case rear so that you can access your hard drive.
How to Protect Your Computer From Viruses
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You can protect yourself against viruses with a few simple steps:
- If you are truly worried about traditional (as opposed to e-mail) viruses, you should be running a more secure operating system like UNIX. You never hear about viruses on these operating systems because the security features keep viruses (and unwanted human visitors) away from your hard disk.
- If you are using an unsecured operating system, then buying virus protection software is a nice safeguard.
- If you simply avoid programs from unknown sources (like the Internet), and instead stick with commercial software purchased on CDs, you eliminate almost all of the risk from traditional viruses.
Computer Virus Origins
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Computer viruses are called viruses because they share some of the traits of biological viruses. A computer virus passes from computer to computer like a biological virus passes from person to person.
Unlike a cell, a virus has no way to reproduce by itself. Instead, a biological virus must inject its DNA into a cell. The viral DNA then uses the cell’s existing machinery to reproduce itself. In some cases, the cell fills with new viral particles until it bursts, releasing the virus. In other cases, the new virus particles bud off the cell one at a time, and the cell remains alive.
