Dell Inspiron 11 3000 series OS install

Morning all,

I'm trying to fix a friend's Dell Inspiron 11 3167 (I think that is the #) as it was filled to the brink with files and programs only leaving 500mb of the 30GB free. I cleared enough to try backing up the files which worked. I then tried to restore the laptop to factory specs which got to 81%, sat there for 10 minutes and then a message saying the operation could not be completed with the only option being to cancel.

I hit cancel and the machine restarts to the diagnosis program. Everything checks out only now it will not boot and keeps cycling through the Dell screen at the beginning.

My guess - OS is now corrupt since the program stopped at 81% telling me it couldn't complete. So now I'm stuck with a laptop that won't boot.

Is it possible to get Windows 10 back on this?

Thanks in advance!