Windows Sync Center Green Sync Status Missing

What worked for me on Win 10 64:

regsvr32.exe cscui.dll in admin cmd.exe like proposed in the top post
start regedit with admin rights
Go to: HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Explorer\ShellIconOverlayIdentifiers
here you see all registered programs providing overlay icons for explorer
Problem: according to here: http://www.thewindowsclub.com/the-overlay-icons-in-windows-7 only 15 overlays are processed. Which 15 these are is determined by the order of the reg keys
the order is the key! I suppose that is the reason why e.g. google drive (in my case) add two leading spaces in the name of the key " GoogleDriveSynced" to be at the top of the list and to guarantee to be processed.

I changed the name of "Offline Files" to " Offline Files" (3 spaces) to get it on top of the list.
restart windows
Sync icons occurs again