[Windows Central Question]

Ok i know im going to get hammered by the reg's here for this, im purely a Blackberry 10 user, i just picked up a Lumia 635 for my sister currently it has 8.1 on it and im kinda new to Windows as was hoping someone out there could guide me into the right direction to get Windows 10 on it

Cheers.

Its a Telstra (Australia) branded phone if that helps

[charlatan1978]

Windows 10 mobile hasn't officially been released.
You can register as a Windows Insider and download a Technical preview, but it is fairly buggy and all your apps may not work.
So seeing as your a newbie to Windows Phone I would recommend staying on WP8.1.
Here is some more info on installing it.
Download Windows Insider Preview for phones - Microsoft Windows

[BluWarrior]

Ya install the insider app, and go to https://insider.windows.com/ and sign up, you can then set up the app to download preview builds, but as charlatan1978 said, I'd use windows 8.1 for now as 10 is still somewhat buggy.