If the write protection of the U disk is added by yourself, it can be removed directly. I don't know what the situation is. I suggest that you make a copy of the U disk file first, right-click our U disk, select the Properties option, select the Tools option, click Start Check, and then click Repair.
U disk, full name of USB flash disk, English name of "USB flash disk". It is a miniature high-capacity mobile storage product that uses USB interface and does not need a physical drive. It is connected with a computer through USB interface to realize plug and play.
the name of USB flash drive originated from a new storage device produced by Netac Technology, which is called "USB flash drive" and is connected by USB interface. After the USB flash drive is connected to the USB interface of the computer, the data of the USB flash drive can be exchanged with the computer.
The equipment with similar technology produced later can no longer be called "USB flash drive" because Netac has registered its patent, but is renamed as "USB flash drive" with homophonic sound. Later, the name U disk was widely known because it was simple and easy to remember, and it was one of the mobile storage devices.