By Barb Nefer, eHow Contributor: Source:
A drive-by download refers to the installation of software on your computer without your knowledge. Sometimes, you may be tricked into accepting the download because it is misrepresented. This software usually has a malicious purpose, such as bombarding you with ads, changing your home page or even installing a virus. You must take steps to avoid drive-by downloads in order to protect your computer.
Instructions
1. Never click on a suspicious ad. This can include virtually any ad, since malicious companies may use ads that mimic those from legitimate outfits. If you are interested in something that's being advertised but are suspicious of the ad, make a note of the offer and company and do a search for their website. Then visit the site directly.
2. Beware of "warning messages" that appear to be generated by your computer but that are actually disguised ads. For example, a box might pop up that you have a virus and need to do an immediate scan. By clicking the ad, you may be downloading a program that will bombard you with ads for unneeded anti-virus software or dubious programs and products.
Read more: How to Prevent Drive-By Software Downloads | eHow.com