Failed to open session Error Virtual Box

Sometimes we get an Error in Oracle Virtual Box

"Failed to open session"

For this we can solve this problem very easily with the below mentioned command in the Command Prompt;

Open Command Prompt in Administrator Mode

Type the below command;

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 bcdedit /set hypervisorlaunchtype off                                                             

Press Enter

This will disable hyper v

To enable again (In case you need to enable it at some point or in some other situation;

Open Command Prompt in Administrator Mode

Type the below command;

 bcdedit /set hypervisorlaunchtype auto
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4 Thanks and Regards 5 Harkawal Post settings Labels Virtual Box, No matching suggestions Published on 7/13/19 2:57 PM Links Location Search Description Options Post: Edit