I too have suffered from this following MS's Win10 updates last week, after much hair pulling and cursing (not to mention restoring from back-ups also) I eventually tracked down the issue.
The culprit was a corrupted C++ 2008 file(s), ended up un-installing EnB/N7/C++ (2008) doing a reg clean and reboot then a clean install of all again....problem solved
Hope this helps,
YetiGBR in his Cave in Yorkshire UK