The project requires a platform SDK (UAP, Version=10.0.10586.0) that is not installed

When i try to build just an empty project for Windows 10 universal / Windows 10 store
then i cant open it in Visual studio. with the message in Topic.

“The project requires a platform SDK (UAP, Version=10.0.10586.0) that is not installed.”

After 2 days of searching google, this forums and trying to install / uninstall tons of sdk, editing the output .csproj file differend unity and vs versions i allways had this Error message.

the software versions i used / tried:

Microsoft Visual Studio Community 2015 Version 14.0.24720.00 Update 1
Windows 10 SDK: 10.0.10586.212 ( it seems like impossible to find an exacly version 10.0.10586.0
I Tried with Unity version 5.3.4f1, 5.2.1.p3. and 5.2.1.f1
(allways the same issue, unity builds fine, but VS cant open solution or project)

Did you try to reinstall Windows 10 SDK - Windows SDK - Windows app development | Microsoft Developer ?

yes, i reinstalled whole visual studio with win10 sdk, for now it works.
at least for a blank project
Seems like the windows 10 sdk shall NOT be installed on a custom path (i had mine on D:.…) and on some other threads other ppl had the same problem with win10 sdk not being installed on c:\programms… (and so on)