What (Windows, macOS, Linux) are you using? Do you know the brand and storage capacity of the drive?
A free, specialized utility designed for USB flash drives and pen drives. It allows clearing of all flags, data, and settings, and is known for restoring drive capacity.
Time-consuming, writes zeros, wipes everything, repairs firmware/controller issues, and restores full capacity. When Should You Use a Low-Level Format?

Columbus’s premier source for the latest and greatest magic tricks.

Featuring magicians from around the world in our state-of-the-art theater.

The production arm of Penguin Magic, the world’s largest magic retailer.