RE: My dell Inspiron 14R (N4110, Early 2011) is in loop of startup repair and restore factory setting
It's very likely the hard drive failed. You need to replace the hard drive.
You can use Seagate Seatools (works with non-Seagate hard drives also) to confirm this. You can download Seagate Seatools from the following link:
You can refer the documentation here:
If you need the OS DVD, kindly provide the version and edition of Windows, like Windows 7 Home Premium, to assist you better.