Install Windows 7 from USB flash drive in 2 easy steps

               This is most easiest way to install Windows 7 from a USB flash drive.You need two things

•                                           ISO image of Windows 7
•                                           USB Flash drive (4 gb minimum)

First download Unetbootin
Insert the USB flash drive and start UNetbootin and select Windows 7 .iso image .

Select the drive letter of USB flash drive and click "OK"
now it will start extracting Windows 7 installation files to the USB flash drive.It will take about 10-15 min time.

   Now restart your PC and during startup press appropriate button (usually F1, F2, F12, ESC)to enter the BIOS menu.In the boot menu in BIOS change boot order of devices,make the USB flash drive first boot device.When done, save changes and reboot PC.Now PC will boot from USB flash drive and you can install Windows 7 from it.



PS: The same software can be used to make bootable USB fash drive of Linux OSs.