While the location of the button and search function both remain, Microsoft has also incorporated an element of the Windows 8 Start page into the new menu, bringing Live Tiles into the interface.
The Live Tiles appear alongside the traditional menu when a user clicks on the Start button.
For those who actually preferred the Windows 8 Start screen interface, that is also available to launch from the Start menu.
Cortana is Microsoft's answer to Apple's virtual assistant, Siri.
Named after the AI character from the flagship Halo franchise for Xbox, Cortana first appeared on Windows Phone 8.1.
Now, with Windows 10, she has been incorporated into the desktop both as a search function within the OS and in the new browser.
All houses are lined up by income, the poor living to the left and the rich to the right.