I am using Windows 7 64-bit Ultimate and use VirtualBox 4.3.20 r96997. After today's Windows updates VirtualBox fails to start any VM (I tried Windows, Linux, FreeBSD). The GUI presents the following error: Errorcode: E_FAIL (0x80004005) Component: Machine Interface: IMachine {480cf695-2d8d-4256-9c7c-cce4184fa048} The VM startup logs all show an error with crypt32.dll. I am attaching three logs. P