Seeking a solution to the problem with this:
http://www.eightforums.com/general-support/36108-dvd-drive-powered-off-lenovo-x230-windows-8-1-64-bit.html
and found that in the safe mode (minimal), the problem does not exist.
For trouble I decided to try other options of safe boot to have further information.
After restarting in safe mode "Äctive difrectory repair"', I can not turn back to...
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