@Soulfox -- true, and a lot of people don't pay attention to malware, adware or anything else until it is too late. Fortunately, the Internet is a great resource for identifying a malware or adware problem and removing it.
If you have a system that is so damaged by malware that it won't work, there are some things you can do to get rid of it yourself. If you can't access your computer, research the problem until you find a solution. A lot of the time, a specialized tool will be available that you can download to a thumb drive and then run on the infected computer.