Get Cortana to work in English (UK) for Windows 10

Solution 1:

Microsoft states that Cortana is available in the UK.

Even if region, language and input are set to UK, users are unable to get Cortana.

This is a well-known bug from Microsoft.

There's a workaround for that bug.

• Cortana shows you with two options: Settings and Not Interested.
• When you click settings it will take you to another page only to tell you that then you cannot enable Cortana as it is "not available in my region".
• However If you click Not Interested, you'll be taken to a page to setup Cortana.

Someone at Microsoft must have changed the Button's text as an Evil joke

Solution 2:

It has been established that this is a bug affecting only the en-GB users of Windows 10, and it only crops up on the odd occasion on PCs. Microsoft has confirmed it is a bug, and is working on patching it. The only two solutions so far would be to reset your PC or wait for Microsoft to release an update on patch Tuesday, the second Tuesday of each month.

EDIT: This is from a Live support tech, but you can also find a comment here: http://answers.microsoft.com/en-us/insider/forum/insider_wintp-insider_cortana/cortana-in-windows-10-disabled-by-company-policy/811b8964-367a-41cc-b7ba-033d0e9dee47

I spoke with MS support today (since now 10240 is officially supported :) ) and they said this is a known bug in which they're working on.

EDIT 2: Reset your PC: