Hi, geemawoo. Welcome to the 2-Spyware.com forums! And thank you for your patience!
The
wscntfy.exe file is a legitimate system component. Usually, it is not spyware, and therefore cannot harm the system.
From WinTask Process Library:wscntfy.exe is a part of the Microsoft Windows Security system and outputs the current security status of your computer. This program is important for the stable and secure running of your computer and should not be terminated.
The real
wscntfy.exe file should be in your default system directory -
C:\WINDOWS\System32. However, if it is located elsewhere, then it might be related to some malicious parasites.
As for your second question, please read the article
Avoiding spyware infections. Also feel free to browse the
2-Spyware.com security articles section. You will definitely find a lot of useful information there.