Windows 10 Guest load failure

[WMurdockJr]

This is a weird error which just began since the last Windows Update occurred for Windows 10 Pro Host. I get every time I have closed the VirtualBox Manager and then reopen to launch in Windows 10 Guest.

When trying to launch Windows 10 Pro (32 Bit) Guest I get the following errors, but after launching a XP Guest which work fine, then the Windows 10 guest launch without any problem.

Error Message: (Tried in 3 times before launching a XP Guest)

Failed to open a session for the virtual machine Win10 GMAIL Pro .

Failed to load VMMR0.r0 (VERR_LDR_MISMATCH_NATIVE).

1st Error

Failed to open a session for the virtual machine Win10 GMAIL Pro .

Failed to load VMMR0.r0 (VERR_LDR_MISMATCH_NATIVE).

Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

2nd Error

Failed to open a session for the virtual machine Win10 GMAIL Pro .

Cannot load R0 module C:\Program Files\Oracle\VirtualBox/VBoxDDR0.r0: SUPR3LoadModule: supLoadModule returned VERR_LDR_MISMATCH_NATIVE (VERR_LDR_MISMATCH_NATIVE).

Failed to register ourselves as a PCI Bus (VERR_MODULE_NOT_FOUND).

Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

3rd Error

Failed to open a session for the virtual machine Win10 GMAIL Pro .

Cannot load R0 module C:\Program Files\Oracle\VirtualBox/VBoxDD2R0.r0: SUPR3LoadModule: supLoadModule returned VERR_LDR_MISMATCH_NATIVE (VERR_LDR_MISMATCH_NATIVE).

Result Code: E_FAIL (0x80004005) Component: ConsoleWrap Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}

[Frank Mehnert]

We see this error only very very rarely. To fix the problem we would need a reliable reproduction scenario.

[wisty]

I am seeing the same problem with both windows 7(32bit)and Windows 10(32bit) guests on a Windows 10 64bit host. I am running VirtualBox-5.0.3-102166.

It is repeatable and happens two/three/four times each time I try to start a VM after rebooting the host. Once either guest VM has started properly they will all start and stop properly until I reboot the host.

The errors in the logs are in the same place, but there are several slightly different failures. All give VERR_LDR_MISMATCH_NATIVE errors One is associated with a failure to load VBoxDDR0.r0, in another case that loads, and VBoxDD2R0.r0 fails to load.

I attach two failure logs in case that helps.

[Frank Mehnert]

Problem should be fixed with the most recent Windows test build (>= 102223). Please confirm!

[wisty]

Replying to frank:

Problem should be fixed with the most recent Windows test build (>= 102223). Please confirm!

Have installed 102224 - problem is fixed. Thank you

[Frank Mehnert]

Fix is part of VBox 5.0.4.