1 October 2014 Last updated at 01:15 BST

Microsoft has disclosed the first details of Windows 10 – its next operating system (OS).

The name is a surprise, bearing in mind it represents a jump from the last version – Windows 8.

Richard Taylor was invited to the software’s unveiling in San Francisco and tested out the return of the Start Menu.

You can follow Richard on Twitter @RichTaylorBBC.

Categories: 2013