Backup and Restore if used properly can be the best way to reinstall any windows whether it is Windows 7, 8 or 10. In this video, obviously in hindi, I have explained the simplest way by using which you can backup your installed windows and then restore it using the recovery disk. In this video I have also explained how you can create a recovery disk even if there is no cd or dvd drive in your pc.

You can download the required software from the links below
Download Total Mounter
Visit the Publisher Site to Download Total Mounter

Download Power ISO 64BIt 32Bit
Visit Publisher Site to Download Power ISO