id summary reporter owner description type status component version resolution keywords cc guest host 14037 Error starting virtual machine after upgrading to 4.3.26 The virtual machine 'Vista' has terminated unexpectedly during startup with exit code 1 (0x1). E_FAIL (0x80004005) shinnai "Hello, since I upgraded to 4.3.26 (but I tried even using 4.3.27), when I start a VM I got the following error: Apertura di una sessione per la Macchina Virtuale Vista non riuscita. The virtual machine 'Vista' has terminated unexpectedly during startup with exit code 1 (0x1). More details may be available in 'C:\Users\Daniela\VirtualBox VMs\Vista\Logs\VBoxStartup.log'. Codice 'uscita: E_FAIL (0x80004005) Componente: Machine Interfaccia: IMachine {480cf695-2d8d-4256-9c7c-cce4184fa048} This is the host machine: Microsoft Windows 7 Professional 6.1.7601 Service Pack 1 build 7601 SAMSUNG ELECTRONICS CO., LTD. X86-based PC x64 Family 6 Model 58 Stepping 9 GenuineIntel ~2400 Mhz Please, see the attached file for startup log Best regards" defect new other VirtualBox 4.3.26 exit code 1 (0x1) E_FAIL (0x80004005) all Windows