I've managed to do it now took me a while, think I'm getting old lol, had an issue with the USB driver at first then I updated it selecting 'Intel Android Composite ADB Interface' and that seemed to work, now running on 8.1, also downloading a new update it found straight away, updating this way won't effect future updates will it?
edit -
Also you can clear all your apps from memory by scrolling to the top and then 'CLEAR ALL' appears, it appears a few people reviewing the phone online didn't know this.