USB ports on your Windows PC or laptop are quite handy ... It could be something as simple as a loose or improper connection, ...

Restart your computer ... be useful in blowing obstructions out of a USB port. Just be careful not to shove the obstruction further in. Check for loose or broken internal connections.

But if you do have problems booting up your computer ... USB drive. You've got a few options here: Disk Utility is a good first port of call, as it includes tools and options that may help you fix ...