Raw-mode is unavailable courtesy of hyper-v. (verr_supdrv_no_raw_mode_hyper_v_root).

Question

Problem :

Currently I am facing following issue:

Failed to open a session for the virtual machine ubuntu.

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}

 

Answer 1

Finally I am able to find the fix for your issue now.

Firstly, you need to understand your problem which mostly people not really find out, it seems your VM came with guest OS of Ubuntu 64-bits but after doing  the import, you must have checked on that VM which shows only 32-bits OS.

And when you start the VM, you must have got below error :

Failed to open a session for the virtual machine ERPNext-Develop-20180331192506.

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}

I realized that the point above (32-bits OS) so I thought the problem must be with this one.

After doing the research I understood that Windows 10 also comes up with the Hyper-V which is conflicting with your Oracle VM VirtualBox.

So solution for you as below...

1.    Disable the Virtualization Based Security in group policy

·   Start and Run application and start the gpedit.msc

·   Go to your Computer configuration > Administrative Template > Device Guard

2.    Disable the Microsoft Hyper-V

·    Start and Run application and start the OptionalFeatures.exe

·    Untick the Hyper-V

·    Restart your PC

Now you can use the VM, it must be started.

Answer 2

STEP 1: If Bitlocker is running

launch "Manage Bitlocker" and suspend anytime you are dealing with security or BIOS updates! Also make sure you have an external copy of the Bitlocker recovery key - since it comes in handy if you ever get locked out.

STEP 2: 

After spending a few hours trying to get a VM running on my PC, I found Hypervisor was still in use by Secure Boot, preventing me from installing a new VM OS, so the bcedit step did nothing to help get past the following VM error:

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

Prior to Step #3 (bcdedit's) - YOU MUST GO INTO THE BIOS AND TURN OFF "SECURE BOOT" & SAVE / REBOOT

Once I turned off Secure Boot and ran Step #3 (bcdedit's), System Information: Virtual-based Security = "Not Enabled"

VMWare installation proceeded as it should and I was finally able to install the VM OS.

Update:

Noticed Secure Boot was not enabled as I thought, but when I enabled, it was still preventing my VM from starting.

IF you still didn’t find the solution then follow this steps

You need to disable Hypervisior to check new application that use VT-x before the virtual machine launch.

1. Open command prompt as Administrator
2. Run bcdedit to check hypervisor status

bcdedit

3. Check hypervisor launch type
4. If is set to auto then disable it

bcdedit /set hypervisorlaunchtype off

5. 5eboot host machine and launch VirtualBox again