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USB ports don't respond to removed drive

dovidf asked
Last Modified: 2020-02-05
I have a library on a cd emulation usb drive. The computer describes it as a cd drive. When it is inserted the first time, it works properly. If it is removed, the system no longer recognizes it and it doesn't appear. Sometimes one of the ports reports error 47

Code 47 error is one of the common device manager code errors generated for peripheral devices. The full error message is Windows cannot use this hardware device because it has been prepared for “safe removal”, but it has not been removed from the computer

The device does not come up as a device that needs to be disconnected. How can this be repaired?
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