id summary reporter owner description type status component version resolution keywords cc guest host 9703 Kernel module does not load anymore (Windows Host) Heliosmaster "After upgrading from VirtualBox 4.1.2 to 4.1.4 yesterday, it stopped working at all. Every time I try to run my Ubuntu host it says that it cannot find the Kernel Module, and return this error: {{{ The virtual machine 'buntu' has terminated unexpectedly during startup. Codice 'uscita (exit code): E_FAIL (0x80004005) Componente (component): Machine Interfaccia (interface): IMachine {5eaa9319-62fc-4b0a-843c-0cb1940f8a91} }}} (There is no VBox.log file I can attach) I tried reverting back to 4.1.2 and back to 4.1.4, but it yields the same result. Furthermore, I tried to be very careful about permissions and run everything as an administrator, but it didn't help at all." defect closed host support VirtualBox 4.1.4 worksforme Linux Windows