Hi Ramzy. To format a usb flash disk use the GParted application. You can find it at location menu > system > partition drives. This YouTube video explains it well. You can ignore/skip the first part of the video that explains how to install GParted.
http://youtu.be/m9zctyRP434
http://youtu.be/m9zctyRP434
![[Image: q7j1yAl.png]](http://i.imgur.com/q7j1yAl.png)