Visual Studio 2015 - Prerelease software. This license has expired

Go into Programs and Features and repair the installation of Visual Studio 2015. After the installation is repaired you should be able to open the program successfully.

I had this same issue today and these steps worked for me.

For me it was a matter of Time / Timezone error. My computer time was set to 06:27 when the actual time was 14:27.