How to Boot Window In USB

There are many softwares in market which we use to boot window but here i will tell you best software from microsoft which is very easy to use and 100% secure.
But to boot any window you should must have windows ISO file so that you can easily boot window.You can also use windows ISO file to burn window in CD. To use windows 7 dvd tool your system must have .NET framework version 2.0 or higher. Here are some requirements...
System Requirements :
Windows XP SP2, Windows Vista, or Windows 7 (32-bit or 64-bit).
50MB of free space on your hard drive.
DVD-R drive or 4GB removable USB flash drive. 
Pentium 233-megahertz (MHz) processor or faster (300 MHz is recommended).
Note: If you are using Windows XP then Microsoft Image Mastering API v2 must be installed which you can download from  Here.
Now just download Windows 7 DVD tool from below link and then run the setup and to boot window just browse your window and then click on Begin Copying then your USB will be automatically boot. when it will complete 100% then you USB will be booted.

So now you can easily use your USB to do window into your system.

                                        Download Window 7 USB Tool

Here is video tutorial for you so that you can easily boot your window.