virtualbox.org

Well, the error text is in german, maybe the english version differs from my translation.
I installed Win 10 Insider in January 2015 and it worked fine all the time. Yesterday this period ended with a display driver crashing. From there on Virtualbox failed to start.
Showing this code:

Fehlercode: (what means error code)
E_FAIL (0x80004005)
Komponente:
ConsoleWrap
Interface:
IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

The log file contents this error text:

PCI: New device in slot 0x58, usb-ehci (vendor=0x8086 device=0x265c)
00:00:05.878726 VMSetError: F:\tinderbox\win-5.0\src\VBox\Devices\Bus\DevPCI.cpp(1506) int __cdecl pciR3CommonLoadExec(struct PCIBus *,struct SSMHANDLE *,unsigned int,unsigned int); rc=VERR_SSM_LOAD_CONFIG_MISMATCH
00:00:05.878821 VMSetError: pci#0: New device in slot 0x58, usb-ehci (vendor=0x8086 device=0x265c) [ver=3 pass=final]
00:00:05.878831 SSM: LoadExec failed for 'pci' instance #0 (version 3, pass 0xffffffff): VERR_SSM_LOAD_CONFIG_MISMATCH
00:00:05.878835 SSM: Unit at 0xdee, current position: offUnit=0xa99 offUnitUser=0x98d

There is one snapshot, which fails to start too. I am really interested to get this Insider Build working again. Does anyone have an idea how to solve it? Would be very appreciated.

If the VM is in saved state and you can't resume it with that, discard the saved state and boot the VM normally.
Doing that, and trying to get the saved state working again, will cause major issues.