Why installing windows 7 from usb?

Windows 7 is the best windows operating system ever produced.It is much accomplished and has a lot of features.Having it installed on your desktop  computer is a great opportunity.By default all operating systems are installed by a CD or DVD using a CD/DVD drive.You take the disc containing windows and put in the CD/DVD drive and go ahead installing the windows operating system.If we work with computers and deal with a lot of computers that need to be installed an operating system such as windows 7,we cannot get the disc everywhere we go because it doesn't fit the pockets (well,we can do that but it doesn't suit us).So here comes an opportunity  to overcome this problem: USB drives. We can make an windows 7 bootable usb and install windows 7 as we would do by a CD or DVD .USB drives are faster than CDs or DVDs and are very flexible.That means you can windows the windows 7 even faster using USB rather than using DVD.
Moreover if you have a little knowledge about operating systems and their system files you can even customize the operating system contained in the USB drive.You can change screens,windows,strings and many other things.In this windows 7 bootable USB you can even integrate applications that can be installed in the computer together with the operating system.Having Windows 7 bootable usb is a must for every computer technician.In later posts we will explain step by step how to make a windows 7 bootable usb.