WindowsDiagnostic is a virus that is very malicious. It totally perverts your operating system, files and folders of your computer. Before it is too late, make sure and remove Windows Dianostic virus at once. The video guide given below shows how to get rid of Windows Diagnostic virus using GridinSoft Trojan Killer.
Windows Diagnostic stands for another fake system optimizer from the relatively new clan of fake system defraggers. Even though its name sounds quite attractively, it has really nothing to do with decent Microsoft applications or any other decent tools. Windows Diagnostic stands for the phishing scam application that only aims to push users into giving money for totally useless program and indicating their credit card information.