To completely reinstall Windows 7 from USB drive, I need help!

You can try the WoeUSB-ng if you are wondering how to reinstall Windows 7- Think of it as a specialized tool built specifically for one job: turning a Windows ISO into a bootable USB stick. It handles all the tricky behind-the-scenes stuff that Windows ISOs need, which tools like dd just can't manage because Windows ISOs aren't "hybrid" images like Linux ones are.

The cool thing is it comes in two flavors: a command-line version and a graphical interface (GUI), so you can pick your poison. And the best part of how to reinstall Windows 7? It's completely free and open-source.

Here's where it gets interesting for you. WoeUSB-ng officially supports Windows 7 (along with Vista, 8, and 10). It can handle both the old-school Legacy/ MBR boot mode and Native UEFI booting for Windows 7 and later. That's actually a pretty big deal because getting a Windows 7 USB to boot on newer UEFI machines can be a real headache.

One small gotcha: if you're using UEFI mode, WoeUSB-ng is limited to using the FAT filesystem for the target USB. This matters because Windows 7's install.wim file can sometimes be larger than 4GB, and FAT32 can't handle files bigger than that. So you might run into a size limit depending on your specific ISO. Just something to be aware of before you dive in.