How to install windows using usb?

hi guys,

i have windows xp & win7 setup saved in my pc... i have read on internet that install windows from usb drive.. but cant find how to do it... so pls let me know how can i install windows from usb ? how can i write setup on usb and how the installation process will works ? will it be the same as installing from a CD ? or it will be different way to install OS...

Thank You :)

I've posted that query before you and here users search google and linked me to a internet tutorial (soon you'll get a long link too)

Windows USB live tool...but it will be difficult to find on net since micrsoft discontinued it...

try Wintoflash.com

Download Windows7 USB tool from here http://download.cnet.com/Windows-7-USB-DVD-Download-Tool/3000-18513_4-10972600.html

and copy files to USB using it

will this win7 tool can be used for xp too ?

[quote=", post:, topic:"]

will this win7 tool can be used for xp too ?
[/quote]

No

okay..1 last thing.. after making usb a bootable windows setup drive.. after installing.. can i again use that usb drive after formating it to save my data again ?

^ Yes you can...

You can check this link for detailed and tested method http://wiredpakistan.com/forums/viewtopic.php?id=10332 [post 11]

thank all :)

But you also need a system that can boot from usb and set the option in BIOS

I am using Win2flash to make pendrive installable. Win 2 Flash is free software and it support every windows edition and also other operating system like linux. I am try it on my netbook and install windows 7 succesfully. But it takes more time than DVD-Rom installation.

It looks like the problem is with you USB, if the USB is old enough then the installation will take time.