The factory restore option is missing from your laptop after installing windows/repartitioning/shrinking the volume. It is a common problem because the OS miss the necessary information to boot the factory restore image.If you didn’t touch the Recovery partition you can restore the original factory state.There are a lot of tutorials available in the internet.But most of them are little bit complex and requires some sort of commanding.This make common people confused.
So this tutorial. This is very simple and there is no need to do commanding.You can restore the factory state of your Dell laptop using graphic interface. You have to do some simple mouse click.It is very successful and completes with in 15 mins.