I have no idea... If i click properties on "this pc" it says win10 pro......

I'm on 10240 build

<DiagReport>
<LicensingData>
<ToolVersion>10.0.10240.16384</ToolVersion>
<LicensingStatus>SL_LICENSING_STATUS_LICENSED</LicensingStatus>
...

Guys I'm stuck with build 10240! I need 1511 so it can support my new GPU (GTX 1080) and even when I try to use the ISO, it will not let me keep my current settings, apps & files. It says I'm trying...