Create shared folder between Windows host and Linux guest in VirtualBox

Make sure Guest Additions CD image is installed.

Click on VirtualBox Menu Devices > Shared Folders > Shared Folders Settings...
In the pop-up box, locate the shared folder in host, enable Auto-mount and Make permanent options.

The shared folder in guest Linux is on /media/sf_share_LinuxMint. But, permission not granted.

To grant permission to user, enter:
$ sudo usermod -a -G vboxsf <user>

Then restart the guest Linux.

DONE after restarted.

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