Copying, moving, or deleting files on a USB drive is usually straightforward. However, this may not be the case if the USB drive you're using is write-protected. As the name suggests, write protection ...

Nexcopy Software Dongle is a write-protected USB drive with software protection dongle technology – offering secure licensing, branding, and remote updates. Most dongles focus only on access control.

I have a bunch of 100mb Zip disks that I read/write protected with the Iomega Zip tools on an old Win98 PC which has gone. I have just tried opening them on another XP box and it just won't have it.