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That is a Windows error. Until that is sorted out, applications such as calibre cannot access the device.
On the occasions I see that error, there was usually an error displayed when the device was connected. This is instead of the normal device has been connected message. For me, it usually means the USB port has gotten into a bad state, and I have to reboot the PC to fix it. It can also help to reboot the device.
Otherwise, there might be something in shown in Device manager for the USB ports and this device.
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