To make bootable pendrive in windows using command prompt....

things we required:
1. a windows ISO files.
2. a minimum 3 Gb pen drive.

steps are:
1. plug the pendrive at usb.
2.open the command prompt.
3.follow the following commands
a. diskpart
b.list disk
c. select disk which indicate the pen drive here disk 1 represents pen drive,we can justify it by the size of disk.
d.clean
e. create partition primary.
f.select partition 1.
g.active
h.format fs=fat32 quick
i.assign
j.now copy the windows file from iso file and paste it in the pen drive.
k.exit

now ur pen drive become bootable for that operating system which u copied on the pen drive. Now you can restart your computer,and boot your system from the pen drive by changing boot option from the BIOS setting.. Enjoy