Lavasoft’s really great spyware cleaner, Ad-Aware, will save your PC from the dangers of malware, by cleaning all those evil and dangerous files sitting on your hard drive.
Malware, and other malicious software can install itself on your computer without you even knowing. They can steal your personal information, see what websites you’ve been visiting, figure out what keys your press on your keyboard, continue annoying you with pop-up spam ads, or just use you to spam other computers.
Without protection, malware can and does render your PC unusable.
If you don’t have spyware protection, download Ad-Aware. Make sure to always update it’s definitions file, because spyware is always changing. Then go ahead and run a full system scan.