Reair USB instead of Repair disc for W7Pro

Dear friends,

My disc-drive seems to be giving problems. I would like to repair my system (when needed) using an USB-stick instead of a disc. I found ways to do that on Google, but it seems rather complicated to make the USB bootable first, extracting the ISO, then putting it on the USB and assigning a disc number to it.

► Are there no simpler ways to make the repair-USB direct - as it was to make a repair disc?

Thanks beforehand,

WaWake