Turn off Hyper-V feature

You can turn off the Hyper-V feature by running this Powershell command:

Disable-WindowsOptionalFeature -Online -FeatureName Microsoft-Hyper-V-All
You can also disable it by going through the Windows system settings:

Right click on the Windows button and select 'Apps and Features'.
Select Turn Windows Features on or off.
Unselect Hyper-V and click OK.