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The best way is to avoid introducing anything foreign to a fresh operating system. Never connect it to the internet, and do not transfer any files, programs or otherwise, to it by any other means--never connect removable media (CD, DVD, Flashdrive, etc.). However, since this would make your computer almost useless in the modern world, here are some steps you can take to protect a networked computer:

  1. Install an anti-virus program (like AVG, Avira, or Avast)
  2. Install an anti-malware program (like Spybot Search and Destroy or Malwarebytes)
  3. Update both of these regularly (like once a day for the first, twice a week for the second) or schedule this to be done automatically in the program settings.
  4. Scan now and then, or set it up to be done automatically. (once every few weeks is probably fine)
  5. Always check to make sure that programs you install are from the developer's website. For example, if you want to install Disk Image XML, get it from "runtime", rather than "DIXML-free". Using a program which gives website ratings like Web of Trust ("mywot") will help you identify the genuine website.
  6. As you install a program, always select "Advanced" install, rather that "Recommended." As you click through the installer, watch carefully for any other programs it is trying to sneak on to your computer. Make sure to uncheck or "Decline" all programs but the one you actually want.
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โˆ™ 2016-05-09 13:42:49
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Q: What are some ways to protect a computer from viruses?
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