You can either choose to sync everything or a few selected folders to the local folder on your computer. Click the Start button to finalize the setup.
The app will sync all the cloud files to this folder.
Check the box next to “Sync My Drive to this computer” and set the location of that folder. Now, it’s time to create a folder that will store a copy of your Drive files. If you wish to backup your photos to Google Photos, toggle this checkbox marked in red below and click “Next”. In my case, I chose Desktop, Documents, and Pictures. Select the folders that you want to backup to Drive automatically. This will allow you to access all the locally stored files from around the world. On this page, the app will create a copy of the files on your computer in Google Drive. Sign in with your Google Account proceed to the next step. The next step is to connect your Google account to the app. Begin by downloading Backup and Sync from Google on your computer.
You can delete or drop files into that folder and the changes take effect in Drive instantaneously. Unlike the Google Drive app which only worked online, Backup & Sync will create a Google Drive folder right inside the file explorer and let you access the files offline. Add Google Drive To Windows File Explorer