Problem solved

I had installed software for a mini usb projector and it was the device itself that caused the crash. It's my shop PC and the device belongs to a client.
Uninstalled the software, assuming that it would also uninstall the device.
Wrong! It had installed EZ Display as an additional display adaptor and it only became apparent when going to refresh the index 'new hardware found'.

Uninstalled it from device manager and problem solved after a reboot.
Silly me!