VirtualBox Not Starting after Successful Docker Installation

Before starting to learn docker, I have been able to open oracle virtual machine. But after following steps on how to install docker on windows, then switching on hyper-v, docker started working but this has made the virtual machine to stop working so I decided to uninstall docker and switch off hyper-v then restart the system, surprisingly, the VirtualBox is still showing similar error like so:

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}

Please how can I fix this?

From Control Panel\All Control Panel Items\Programs and Features, Click on the "Turn Windows features on or off", and in the pop-up which appears, do the following

 1. turn off Hyper-V by unchecking the Checkbox
 2. turn off Windows Hypervisor Platform unchecking the Checkbox
 3. turn off Windows Sandbox
 4. turn off Containers

Reboot when prompted. Then try Virtual Box again, it should work. Alternatively you can uninstall and reinstall Virtual box. It might work too.