This video is about troubleshooting, "Call to WHvSetupPartition failed: ERROR_SUCCESS (Last=0xc000000d/87) (VERR_NEM_VM_CREATE_FAILED)." on Virtualbox.
You will get the error as call to WHvSetupPartition failed and error code:(Last=0xc000000d/87) and the error message will be displayed as, "Failed to Open a Session for the Virtual Machine.
Use this command on command prompt to fix the issue.
Command: bcdedit /set hypervisorlaunchtype off
After you enter those command restart your computer and it will fix the issue of Failed to Open a Session for the Virtual Machine Call to WHvSetupPartition failed: ERROR_SUCCESS (Last=0xc000000d/87) (VERR_NEM_VM_CREATE_FAILED) on Virtualbox.