How to reopen the Google Drive icon? Sometimes the icon of Google Drive, on the top menu, disappears. This really annoys me also because this is happening always more frequently (and I don't want to go to the web browser and search for Google Drive, etc. I don't know how to solve this unless I restart the mac, but this is also annoying and undesirable. 

So, is there a way of making that icon reappear, i.e. restart Google Drive's client on the mac, in case it dies?
Just go to your Applications folder in Finder and double click the application "Backup and Sync from Google.app".  If that does not work, other options may need to be explored.