System_Thread_Exception_Not_Handled {SYMEFA64.SYS} After searching the community I was unable to find anything pertaining to Windows 8.1. So, here it is. Turned on my laptop after a friend attempted to clone my HDD to new WD one. The clone did not work. He used a program called DriveImage XML - which he insisted he used in the past. When I turned my laptop on the error message came up. I ended up doing a reset on it, and am now back to the manufacturers settings (as I bought the laptop) I reinstalled NIS 14 via their site turned on machine, and same problem. So I started over. New fresh Windows 8 (did not "upgrade" to win 8.1) I want to reinstall again, but am afraid I will run into the problem again. By the way. The laptop came with NIS installed so when I did reset it was still there, so I uninstalled using NIS uninstaller and my system is okay...so far.