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Trying to load virtual machine into Virtualbox on laptop that has Hyper V running - cannot load Vista from disk - produces this error-

Failed to open a session for the virtual machine VistaVirt.

Raw-mode is unavailable courtesy of Hyper-V. (VERR_SUPDRV_NO_RAW_MODE_HYPER_V_ROOT).

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

Is this because Hyper V is installed ?
Any ideas please?

mikejj101 wrote:Is this because Hyper V is installed ?

Yes, exactly.

mikejj101 wrote:Any ideas please?

Uninstall Hyper-V, it's stealing exclusively your VT-x capabilities.

The trick with VT-x is that it has to be shared, since it's "only one" available slot for its use. For example, VMware and VirtualBox do not use VT-x at the same time, but rather take turns. To put it simply, every program that uses VT-x should do this: VT-x lock, execute, VT-x unlock. This way other processes can use VT-x in turns.

On the other hand, Hyper-V permanently takes over VT-x and doesn't let anyone else use it. If a program uses VT-x from the moment it is loaded, and doesn't let go till the moment it dies, you have a problem. So, please complain to Microsoft about that.

Hi all,
I'm attempting to load a workshop manual that I purchased.
The format of the manual is a ,ova file.
When I attempt to open the file in VirtualBox I get the following error:-

Failed to open a session for the virtual machine Citroen_2013.

Raw-mode is unavailable courtesy of Hyper-V. (VERR_SUPDRV_NO_RAW_MODE_HYPER_V_ROOT).

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

Anyone got any idea why it will not open?

Thanks

Mike

Disable Hyper-v on your host PC.

https://www.google.com/search?hl=en&as_ ... by+licence

Thanks for the reply.

I've disabled Hyper V on PC but error message continues.

The error message is telling you that Hyper-v is enabled, so if you still get that message then Hyper-v is not disabled. It is not a mistake. Read FAQ: I have a 64bit host, but can't install 64bit guests, especially the last two posts.

@mikejj101
I merged your current question, with the exact same one that you had from 2018-10-19. Keep in mind that according to the forum rules, duplicate posts are not allowed.