The window will then prompt for sign in with a Google account.
If the window does not appear, minimize your browser or any other windows on your desktop, as it might be hiding beneath them.
After a few seconds a pop-up window should appear with a "Get Started" button.
Select the file "installbackupandsync.exe" in the lower left-hand corner of your browser and select "Yes" at the UAC prompt to install the software on your machine.
Once at the webpage, navigate to the lower left-hand box labeled "Backup and Sync" and click the download button.
Google Drive Backup and Sync can be downloaded here:.
3.1 Viewing Sync Status and Accessing Preferences.