Windows 8 crash and restore - Windows 8

My Windows 8 has crashed, How can I restore it?

I didn't install any backup software, I just want it turn normal.

Anyone help?

Backup and Restore—improved for Windows 8—creates safety copies of your most important personal files, so you're always prepared for the worst.

Let Windows choose what to back up, or pick individual folders, libraries, and drives yourself. Windows can back up files on whatever schedule you choose—just set it and forget it.

You can back up to another drive or a DVD. And if you're using the Professional or Ultimate editions of Windows 8, you'll also have the option of backing up your files to a network.