It might be confusing, how you will insert a USB that you’ve known to be a working USB, into your USB drive and when it starts reading it, you get an error message saying “Please insert a disk into Removable Disk.”
You can’t always solve this this problem by re-inserting the USB drive – but there are a few things you can try to solve this.
Change drive letter
First, try changing the drive letter. It is possible that your computer is causing the issue due to conflict in reading the correct path to the drives.