H55N-USB3 won't boot from USB

[Alkoran]

I try to reinstall Windows 7 from my USB key but it doesn't work. It worked the first time though. All it does it's to stay on "Loading Operating System" and when I take off the USB key it does the usual "Failed loading Operating system"

Any suggestion here?

[Dark Mantis]

It sounds like maybe the OS files on the USB key have got corrupted.

[Alkoran]

Well I did the Iso from my legit Windows DVD and used the microsoft tool to transfer the iso to the usb key. I don't understand at all

[Dark Mantis]

That doesn't necessarilly mean anything. Just because the source was good doesn't mean that the copy is perfect. However that is only one explanation.

You could have a fault with your memory or several other things that could have the same effect.