Mavericks 10.9.3 build 13D55 will not boot in parallels desktop. But it does in vmware fusion. We had the same problem with builds 13D38, 13D43 and 13D45a.
you mean after boot you get a black screen, and no log on screen ? 10.9.3 is beta, and happened the same to me too... Parallels is working on it.
Same here, with the release version of 10.9.3 . Upto and including 10.6, I used to clone my boot disk to an external and then boot off that clone to apply OS updates, typically using a combo updater. Is this still possible?
FYI, a temporary workaround here: http://forum.parallels.com/showthre...nd-found-for-Black-Screen-on-Mac-10-9-3-Guest
