I don't have any experience with the virtual stuff you installed, but you might try turning off Hyper-V.
When you say you enabled UEFI in the bios, what exactly do you mean? UEFI option for booting can be enabled or disabled, just cannot used if you did not install with that configuration.
After the Windows 8 logo, the system may be loading drivers. It might be related to the Virtual stuff you installed.
When you run Automatic Repair, does it initially see a Windows 8 install? The System restore message seems to say it is not sure which install to boot... Any thoughts on that?