Roberto,
let me suggest that you start a new topic for your problem - this issue has been resolved and your error message "21, the device is not ready" seems to have a different cause...
This said, a quick internet search for the Windows OS "error 21 device is not ready" seems to indicate that there might be a configuration problem with your hardware.
Thorsten
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Re: MAXDB Installation error - Some Database application might still be running
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