That night, I stopped trying to use the command line or the default Windows formatter. I used a free, open-source tool called . It is the industry standard for a reason: it asks you the right questions.

Run the .exe file and select Create installation media (USB flash drive, DVD, or ISO file) for another PC .

Choose NTFS for Windows installations (or FAT32 if specifically required).

If you’re looking for a straightforward review of the process and tools involved in formatting a USB drive to make it bootable (for OS installation, diagnostics, or recovery), here’s a solid, practical breakdown.

Without these steps, your computer’s BIOS/UEFI won’t recognize the drive as a startup device.