This video will show how to install Drive File Stream for Windows PCs.
From Google Drive clicking the settings gear will get you to this Google Help Centre Article:
– Click Download for Windows
On your computer, open: DriveFileStream.exe on Windows, likely in your Downloads Folder or bottom left corner of Chrome
– follow on screen instructions during installation.
Requires Windows 7 or Higher
If you want to compare Google Drive File Stream with the Google Backup and Sync Utility check out this video