Hello every time when start the pc I am getting a error message. The message is ” C:\WINDOWS\system32\wscntfy.exe the NTVDM CPU has encountered an illegal instruction. Close'to terminate the application." I want some help to fix this issue. I am having a Windows XP pc. I had got this error message for the first time and not really sure what to do. I am unable to do any work on my system.