This will be indeed be a quick tip.  Last Friday I updated to Windows Insider Build 15007.  I love being on the bleeding edge of technology but every once in a while things don’t go the way you want them.  Monday morning I found that SfB Client wasn’t loading anymore.  Now I’m in the Insider Fast for Office as well (I could open Outlook Meetings and more).  So I assumed it was a new build of Office and rolled that back to production.  The problem continued.

I jumped over to EventViewer to see if there was anything useful – typically there is not and I found this:

Figured having whatever Spectrum.exe crashing every second wasn’t a good thing.  So a bit of hunting around and I found this post:

https://answers.microsoft.com/en-us/insider/forum/insider_wintp-insider_devices/build-15007-no-audio-issue-workaround/c4c931ff-0201-42b5-8725-998a3e22c803

Which tells us to blow away a folder and restart:

Rmdir /s %ProgramData%\Microsoft\Spectrum\PersistedSpatialAnchors

Shutdown /r

After the reboot all was good.  Now to put the Office Insiders Fast ring back on.