Fix Version/s: None
STR: 1. Install VirtualBox guest addons. Reboot.
2. Uninstall VirtualBox guest addons. Reboot.
black screen instead of desktop.
Debugging log attached (started debugging since the boot required to uninstall guest addons + later boot [when the ROS fails to load] is captured).
Tested on bootcd-68137-dbg, bootcd-70478-dbg and ReactOS-0.4.0RC2.
VBox 5.0.12 + some older one (like 5.0.10).