How to create bootable pendrive

Need to reformat your netbook that without dvdrom?
You downloaded window iso file but no dvd-rom.
here's the solution!
all you need is a pendrive that have enough space for the iso file
and a software call Windows 7 USB/DVD Tool
1. install it and locate your iso file location


2. Format your thumbdrive

3. Then process and the iso will copy to your pendrive

4. Reboot and format!