Procedure Below Guides you to install windows 7/8/8.1 from USB (iso file ).
It's Simple then you think!!!
Just Follow each Step carefully Below to get Installed windows 8 or 8.1 on your system (Work as well for windows 7).
1- You Must have an ISO file of Windows first to install Using USB i you Don't have it Create an ISO file using : this ISO Creator
1- Get a USB of capacity more than 4 GB , we Recommend USB of 8 GB which has a capacity of 7.4 GB.
2- Download the Software "Windows 7 USB dvd Tool" from here http://wudt.codeplex.com/
and install it.
3- Now open the windows 7 USB DVD Tool.
5- Know attach your USB flash Drive with your computer. and just go through steps in WINDOWS 7 DVD Tool
6- It will start copying files into USB...after few minutes a message will be displayed showing Bootable device created successfully !!! You have DONe almost.
7- Restart Your PC keep the USB attached and Boot through USB.. all Good
if You have any questions mail me at firstname.lastname@example.org