We too have an issue with a Windows 7 VM , in this case, running on Windows 10 host. This is VMware workstation 14.1.1.
We did have, of course, a Malawarbytes problem, but an update from them has sorted that memory hog.
Coming to the machine it reports it cannot add another monitor when there is only one on the system anyway.
Hitting the "full screen mode" eventually sorts it but it needed lots of clicking to clear dialog boxes.
The VM was bashing the processor during this process so something was taking it to 100%