Dell optiplex 760 won't boot

Just purchased a refurbished Dell Optiplex 760. Worked great with no problems for first month.  Was in the middle of using it when I received an error message "your PC ran into a problem and needs to restart, we're just collecting some error info and then we'll restart for you."  Stop Code: system service exception. What failed: fileinfo.sys

After it restarted and tried to reboot it is now stuck in a loop where it gets to the Dell losing screen for about 5 seconds and then goes back and tries to boot again.