There is a bit issue after going ahead with Windows 8.1 upgrade on Acer Iconia W700. The upgrade was fine.But after that there is a bit issue with the system. The system is not working fine. I am using a mouse and keyboard on it. I am unable to get proper output from the same. The mouse cursor lags or lot. And sometime the screen flicker. It looks there is some kind of driver issue in the system. When I try to some videos windows media player crashes. What should I do to fix the issue.
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