In this tutorial, we learn how to protect a Windows PC from spyware & malicious software with Dave. You can get spyware from downloading random things, so a great way to make sure you don't download these things, is to use Firefox and search your items before you download them. If you do happen to get these, use SpyBot to find and destroy the viruses you have downloaded. It's free to download, you just have to search it on Google, then download and install it. This will help save your computer when you accidentally download malicious things on your computer. SpyBot has software that will find something right away if it tries to download to your registry as well!