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Failed to open a session for the virtual machine Ubuntu.

mjs2011
mjs2011 asked
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Failed to open a session for the virtual machine Ubuntu.

Call to VidMessageSlotMap failed: Last=0xc000000d/87 (VERR_NEM_VM_CREATE_FAILED).

Result Code: E_FAIL (0x80004005)
Component: ConsoleWrap
Interface: IConsole {872da645-4a9b-1727-bee2-5585105b9eed}
VBOX.LOG
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nociSoftware Engineer
Distinguished Expert 2019

Commented:
It seems to be related  to Hyper-V on Windows 10
See here:  https://www.virtualbox.org/ticket/18536
Commented:
1.      "Run" and type "gpedit.msc"
2.       in that Go to Local Computer Policy - Computer Configuration - Administrative Templates - System - Device Guard - Turn on Virtualization Double click that .... and select "Disable".
3.      Go to Control Panel - Uninstall a Program - Turn Windows features on or off - (uncheck/turn off) Hyper-V. Click OK Select Do not restart.
4.       type the following in cmd prompt to Delete the related EFI variables from the BCD file Launch cmd as admin...

bcdedit /create {0cb3b571-2f2e-4343-a879-d86a476d7215} /d "DebugTool" /application osloader bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} path "\EFI\Microsoft\Boot\SecConfig.efi

bcdedit /set {bootmgr} bootsequence {0cb3b571-2f2e-4343-a879-d86a476d7215}

bcdedit /set {0cb3b571-2f2e-4343-a879-d86a476d7215} loadoptions DISABLE-LSA-ISO,DISABLE-VBS

bcdedit /set hypervisorlaunchtype off

5.      Restart the computer
nociSoftware Engineer
Distinguished Expert 2019

Commented:
Thanks for posting your solution.