Have you tried restoring my doubledriver dumb in the downloads section? Download doubledriver and then restore my dump and see if it works out for you.
hi, thank you for your replay.
i found the solution of the problem, its from a bad version of Windows 8 that i used, so i redownload the Windows 8 from the site of microsoft, install it, activate it with my pro key, let all update to finished to finished at the Windows 8.1 pro then install the Windows 8.1 drivers (from xda forum) and at that moment all the tablet fonctionalities return to normal.
but again thank you for your advise.