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Google Drive will only sync your files automatically when you are logged in to your account on Windows. If you want Google Drive to start even before you are logged in to your account, you can add it to Task Scheduler.
- On Windows 7, go to Start > All Programs > Accessories > System Tools > Task Scheduler
- Click on Create Task…
- Under General Tab
- Name: Google Drive Sync
- Security options: Run whether user is logged on or not
- Under Triggers Tab
- Click ‘New…’ button
- Begin the task: At startup
- Click ‘OK’ button
- Under Actions Tab
- Click ‘New…’ button
- Click ‘Browse…’ button
- Locate googledrivesync.exe (By default it is under C:\Program Files (x86)\Google\Drive)
- Click ‘OK’ button
- Under Settings Tab
- Uncheck ‘Stop the task if it runs longer …’
- Click ‘OK’ button to save the task