I purchased the download version of Windows 8 Pro. After installing the software my pc fails to boot with the following message: "Your PC needs to restart. Please hold down the power button. Error Code: 0x0000005D; Parameters: 0x030F0209, 0x756E6547, 0x49656E69 and 0x6C65746E." I've restarted the pc several times and am still getting the same message. Please help.
PC was running Windows XP prior to the install.