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This is the Google Backup and Sync download page. " A terms of service window will appear. This downloads a file called installbackupandsync.exe to your PC. You may have to select a folder and click Save or Download to download the file. You can do this by double-clicking installbackupandsync.exe in your Downloads folder. Backup and Sync will now install. If prompted to allow the program to make changes to your computer, click Yes. Now that Backup & Sync is installed, a cloud icon has been added to your system tray (the part of the taskbar where the clock, battery indicator, and volume appear). Click the cloud icon in the system tray near the clock. If you don't see it, click the up-arrow to the left of the icons you do see to view more icons—you'll be able to click it there.  Follow the on-screen instructions to sign in with your Google/Gmail username and password. A list of folders will appear. The folders listed at the top of the window are the ones that are set to be backed up by default. All subfolders within each selected folder will also be synced.  To prevent a folder from syncing to your drive, remove its check mark. To add a folder, click CHOOSE FOLDER below the folder list, select a folder, and then click Select Folder. It's at the bottom-right corner of the folder list. Go through the following steps on the window that appears:  To sync all types of files from whatever folders you choose to back up, leave Back up all files and folders selected. To back up only photos and videos, select Back up photos and videos. You can also choose whether you want to back up screenshots and/or RAW files. If you don't want to back up files with certain file extensions (e.g., files that end in .exe), click Advanced Settings, type the file extension, then click ADD. Click OK when you're finished. If you'll be backing up photos, choose a file size option under "Photo and video upload size."  If you choose High quality, you can enjoy unlimited photo and video backups that don't count against your Google Drive storage. Synced files will be backed up at a slightly-less high quality. This is great for most people. If you need to sync very high-resolution photos and videos without degrading their quality (such as if you're a videographer or photographer), select Original quality. Just know that you'll probably need to purchase extra storage space. If you want your photos to appear in your Google Photos account, check the box next to "Upload photos and videos to Google Photos." It's at the bottom-right corner of the window. Now that you've chosen which folders you'll sync to your Google Drive, you'll have to choose which folders from your Google Drive you want to sync to the computer. If you want to be able access the files stored on Google Drive while you're working in Windows, check the box next to "Sync My Drive to this computer" at the top of the window. If you sync files from Google Drive, a new folder called "Google Drive" will be added your main user folder. You'll be able to access this folder in the File Explorer by clicking Google Drive under "Quick access." All folders on your Google Drive are selected by default. To choose specific folders, select Sync only these folders , and then make your selections. The selected files and folders will now sync between your Google Drive and your PC. The cloud icon in the system tray will display two arrows, indicating that a sync is in progress.  Syncing will happen automatically; there's no need to click anything to resync your files. To check the progress of a sync, click the cloud icon in the system tray. You can pause a sync-in-progress by clicking the Backup and Sync cloud icon and selecting Pause . Resume the sync when you're ready by clicking Resume  in the same menu. Click the  Backup & Sync  icon in the system tray. Click the small folder icon with a tiny Google Drive logo inside to open the Google Drive folder in File Explorer. Click the  Backup & Sync  icon. Click the triangular Google Drive icon. Click  Computers  in the left panel. Click your computer (e.g.  My Laptop ) in the main panel to view your files. If you ever want to change which files and folders are synced, click the Backup & Sync icon, click ⁝  at the top-right corner, and then click Preferences .  You can add or remove files or folders from the sync as needed. Click the Settings tab on the left side of the window to view additional options. This is where you can set whether Backup & Sync starts up automatically when you boot the computer. You can also click Network Settings here to adjust your upload and downloads speeds.

Summary:
Go to https://www.google.com/drive/download in a web browser. Click Download under "Personal. Click Agree and Download. Run the installer file. Click Close once the app is installed. Open Backup & Sync. Click GET STARTED on the welcome screen. Sign in to your Google account. Click GOT IT once you're signed in. Choose which folders to sync from your computer to Google Drive. Click Change to select which files to back up. Select your photo syncing preferences. Click NEXT. Click GOT IT. Choose whether to sync folders from Google Drive to your PC. Choose which folders to sync to the PC. Click Start. View files you synced to the computer. View files you synced to Google Drive. Manage your syncing preferences.