The first thing that you can do to find out what could be causing Google Photos to get stuck is to check the backup status. Google Drive, as one of the most popular online cloud storgae, owns countless users worldwide.Howerver, a lot of users complain about that Google Drive app never stops syncing either stuck on Backing up 1 of XXX or take days to only backup few items Google One now backs up MMS messages on Android. This task is similar to uploading files to Google Drive 2 If Google Photos stuck on backing up pictures and videos after you enabled the auto-sync switch on your device, simply try to upload the content manually. Click on the magnifying glass in Windows 10 and search for view advanced system settings. So I just changed it back to the SSD and problem solved. Apparently this breaks the installation of Google's Backup and Sync AKA Google Drive's Desktop software.
