will not start installation

[Bozidar_1]

Greetings to everyone, today I tried to install Windows 7 as a dual boot with the current 8.1 pro win , it is asus x553m , let alone csm first option is a flash memory ( 8GB Trancend ) and other optional hard disk, click F10 to save i exit and needs to start installing Windows 7 from usb stick , but will not start and restarts the current operating system here's a clip where I made ​​a detailed procedure , so please answer for a solution to the problem link https://www.youtube.com/watch?v=XaW5trbgF5o

 

[cin19]

Following the guide, it worked for me. http://www.eightforums.com/tutorials/2344-dual-boot-installation-windows-8-windows-7-vista.html