Problem occurs when uninstalling VMWare Fusion V8 and reinstalling V7.
Refer: VMWare knowledge base "Manually uninstalling VMWare Fusion (1017838)
I had a 3 hour contact with Apple Support yesterday. Finally I had to restore my system from Time Machine. I was able to recreate the problem after...
My macOS Sierra shows all question marks instead of readable characters.
I allready did a re-install of Sierra but this has not changed the problem.
My last actions were:
Removed VMWare Fusion V8 from the applications folder (trial version, expired yesterday)
Reinstalled VMWare Fusion V7...