No, you can't use a USB boot drive more than once.
No, you can't use a USB boot drive more than once.
Sure, you can create a Windows 8 ISO from a USB drive and use it on multiple computers. Just make sure the installation media is properly formatted and compatible.
You're welcome to use it whenever you like, as long as you maintain the necessary licenses.
I need to acquire Windows, which means I’ll have to buy it twice.