Win 10 probably wont overwrite the Dell recovery partition...
When I looked at my dad's Dell he had what appeared to be 3 recovery partitions. One looked to be a recovery bootstrap 300MB, one looked like it was a vanilla Windows Recovery Partition a few GB and the third was Dell specific 10GB. IDK how all that plays together, it could be the 3rd one was just the Dell Backup.
Worst comes to worst you can request Recovery Media with your service tag from Dell but it would be quicker to go ahead and make the image and System Recovery Disk.
When I looked at my dad's Dell he had what appeared to be 3 recovery partitions. One looked to be a recovery bootstrap 300MB, one looked like it was a vanilla Windows Recovery Partition a few GB and the third was Dell specific 10GB. IDK how all that plays together, it could be the 3rd one was just the Dell Backup.
Worst comes to worst you can request Recovery Media with your service tag from Dell but it would be quicker to go ahead and make the image and System Recovery Disk.