how we create bootble usb

Rufus

Create bootable USB drives the easy way

Rufus is a small utility that helps format and create bootable USB flash drives, such as USB keys/pendrives, memory sticks, etc.
It can be especially useful for cases where:

• you need to create USB installation media from bootable ISOs (Windows, Linux, UEFI, etc.)
• you need to work on a system that doesn't have an OS installed
• you need to flash a BIOS or other firmware from DOS
• you want to run a low-level utility

Despite its small size, Rufus provides everything you need!
Oh, and Rufus is fast. For instance it's about twice as fast as UNetbootin, Universal USB Installer or Windows 7 USB download tool, on the creation of a Windows 7 USB installation drive from an ISO (with honorable mention to WiNToBootic for managing to keep up). It is also marginally faster on the creation of Linux bootable USB from ISOs ⁽¹⁾.
A non exhaustive list of Rufus supported ISOs is also provided at the bottom of this page ⁽²⁾.

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• Rufus v1.3.4 (459 KB)

BY HaRis