There's a error when I follow the steps of the Beaglebone Black LESSON 2: Getting Started.

There’s a error when I follow the steps of the Beaglebone Black LESSON 2: Getting Started to install USB driver on my notebook PC of Win 10 OS.
What has happen and how to solve it?

The windows signing key expired and it's being worked on.. Till then you
need to disable windows's driver signing..

Regards,