Start button not working
I am running Windows Home Insider Preview with Evaluation copy. Build 17025.rs_prerelease.171020-1626. Since yesterday the start button and the search button don't work so I am unable to access the insider hub to tell Microsoft of the problem. Other buttons on the taskbar also don't work - Notification button on the right, Search button, but the most important is the Start button. To shut down last night I had to use Crtl+ Alt+Del and this morning found it had started up again overnight. How do I tell Microsoft about this error?