I have the exact same issue. searched in google no luck.
My HDD size is 2 TB as well. Looks like when you take the system backup, it takes the size of C Drive. You can't shrink it either to the size of SSD and Disk Mgmt does'nt let me do so. Best I can shrink is 950 GB and will not help. Also Dell Backup/Recovery will let you take backup only once.. You need to pay to upgrade to take more system backups. I am stuck. Anyone out there who can help?? If I can't find a hit in Google, most likely it is a dead end :-(
Ram