MS Office and Google Drive File Stream: Safe to edit

Google drive file stream  is now adding an real-time presence to your Microsoft Office documents.
In the bottom right corner of your documents you see a Safe to edit message to indicate no one else is working in the file.
You will also see who is editing and be able to merge after simultaneous editing.
You need to have the Drive File Stream Client installed for this feature to be active. Google is doing this without any Office plugin. When you launch the office document from your synced drive the Drive Client monitors it and displays the messages on top. Nice work Google!

Google Drive File Stream: Drive letter changing on Windows (bug + workaround)

Google is replacing Google Drive with Google Drive File Stream (GDFS).
With GDFS you can (finally) cherry pick the folders that are synchronized to your local Drive (default: none).
GDFS mounts all network shares by default to drive G (what did you expect?).
Under G you will find a folder for your personal Drive and another folder for team drives you are member of (new with GDFS).
If the G drive is taken, GDFS takes the H drive and so on...

But...
Every once in a while GDFS mistakenly thinks the G drive is occupied and switches to H, next time it is back on G again... Very annoying if you have an absolute path reference to something on your drive (shortcuts, scripts...). The solution is a classic Windows trick: stop and restart:

1. Go to your task bar tray, right click the GDFS icon and choose quit
2. Start Drive File Stream again from the Start Menu.

Users are really annoyed by this bug, so let's hope it's fixed soon.