The most likely cause of loss of computer performance is called malware (spyware, adware, key-loggers, or drive-by downloader, etc.) that enter your system by various means, slowing things down to a crawl. Learn how to protect your computer from malware.

Scanning your computer system to remove any spyware invaders that may be present is a good first step to protecting yourself from potential threats on the Internet; however, it simply is not enough. All too often, spyware components can come back just as easily after they are removed. To provide future protection for your computer [...]