I originally bought DisplayFusion through Steam. This was working fine on Windows 7 until my computer got infected by some malware and I ran Malwarebytes and Combofix to take care of that. However, I've been unable to run DF from Steam as well as the newest downloaded version here. I've uninstalled the old version and continue to get an error "ShellExecuteEx failed; code 31. A device attached to the system is not functioning." I've attached the error message.

Any suggestions on what I can do?

Looks like my computer just needed a reboot to get it all working again, so this can be removed.