What causes "All-in-one USB Card Reader" to create 6 drives that always appear in Disk Management?

Posted by tim11g on Super User See other posts from Super User or by tim11g
Published on 2013-11-03T03:11:57Z Indexed on 2013/11/03 3:58 UTC
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windows-7

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usb

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usb-storage

I installed a "All-in-one USB Card Reader" to read SD cards and other media.

It has caused six new drives to appear in Disk Management with six new drive letter assignments. These drives and letters are always present, even when there are no cards in the reader. When unused, they are labeled "No Media".

Why does this multifunction reader cause these phantom Disks to appear and consume drive letters? Every USB port can (and does) allow removable media to be mounted and assigned a drive letter, and the drive letter assignment "disappears" when the USB drive is removed. Why are these card reader's drives and letters staying allocated permanently? Is there anything that can be done to make the slots work like a typical USB drive? (The reader is in fact connected to USB).

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