Adware:Adware (or spyware) is a small program that is designed to show advertisements (in various form and degrees of intrusiveness) on your computer. It often reports personal information back to its owners. As a result your sense of privacy can be violated.
WinProtect is an adware application that works in the Taskbar and shows fake messages saying that "Your PC might be at risk". When a user clicks on such message WinProtect opens a site of certain anti-malware vendor. The application starts automatically on every Windows startup and shows annoying advertisements from time to time. Consider using reputable anti-malware software to completely remove this spyware.
Technical details (How to remove WinProtect(pop up))