id summary reporter owner description type status component version resolution keywords cc guest host 6753 WinNT fails to boot, missing symbol in VBoxGuestNT.sys Sven "STOP: c0000263 {Driver Entry Point Not Found} The \SystemRoot\System32\Drivers\VBoxGuestNT.sys device driver could not locate the entry point MmAllocateConftiguousMemorySpecifyCache in driver ntoskrnl.exe. Well, I reported a similar bug some months ago. It was another symbol, and it was fixed, and now this. Do you actually test with WinNT SP 6 ?" defect closed guest additions VirtualBox 3.2.0 duplicate Windows Linux