  My new 8900 XPS came with W7SP1 preinstalled, plus a disk to "upgrade" to W10 (like that's going to happen) (until they do an XP style extortion, that is). Since MS has made it impractical to go XP, and Vista and 8 were written to destroy modern commerce and productivity, I plan to remain on 7.  Thus I have no O.S. install disks, no product key, etc. for the operating system I will be with for a long time. I did run the Factory Recovery so I have that at least. Yet do I get to have install disks?   I created backup of Windows 7 SP1 on USB stick with Dell Backup and Recovery software. However, I also used Clonezilla to create an image of my entire hard drive. Starting from scratch means many hours wasted installing software. I don't want to have to do that.  
My new 8900 XPS came with W7SP1 preinstalled, plus a disk to "upgrade" to W10 (like that's going to happen) (until they do an XP style extortion, that is). Since MS has made it impractical to go XP, and Vista and 8 were written to destroy modern commerce and productivity, I plan to remain on 7.  Thus I have no O.S. install disks, no product key, etc. for the operating system I will be with for a long time. I did run the Factory Recovery so I have that at least. Yet do I get to have install disks?
New Dell ships with no install disks