| Problem | Likely Fix | |---------|-------------| | USB not recognized in boot menu | Try a different USB port (preferably USB 2.0). | | "No bootable device" error | Recreate the USB using the opposite partition scheme (GPT ↔ MBR). | | Media Creation Tool fails at 99% | Run the tool as Administrator and disable your antivirus temporarily. | | USB drive shows wrong size after | Use (clean command) or Rufus to restore it. |
: Navigate to the "Boot" tab and move your USB drive to the #1 position. usb installer windows 10