Malware: Spyware, Adware,Virus,et al.

If you do not have any protection on your PC and it is behaving erratically; you are most likely to be infected with vicious software called Malware. According statistics collected by InfectedOrNot.com, more than half the computers scanned by them were infected with some kind of malware. Almost 70% of the non protected computers and almost 50% of the protected computers are infected by some form of malware.
Panda Software who are behind website the InfectedOrNot.com,claims that their goal is to raise awareness about these widespread infections (besides the promotion of their new tools, of course). The website allows you to use their Panda Nano Scan and Panda Total Scan tools for free and, more importantly, it displays the collected stats from all the scans performed at the website in the past 24 hours.
Now many of these so called malware detection and removal websites, are in fact responsible for installing their own malware, so beware of these impostors.I am not sure if this InfectedOrnot.com is genuine or not but If you want to test drive the new security tools from Panda go to InfectedOrNot.com. In doing so, you will also contribute to the awareness of the prevalence of malware infections. Besides, since you are probably infected it wouldn’t hurt to find out about it.
Def:"Malware" is short for malicious software and is typically used as a catch-all term to refer to any software designed to cause damage to a single computer, server, or computer network, whether it's a virus, spyware, adware,et al.