Dual MOnitors stopped working with the Windows 8.1 upgrade valentines week 2015

The recent windows 8.1 upgrade during the week of 2/8/2015 broke the ability to duplicate screens on my Envy dv6 and a Hannspree LCD.  There is no screen on the Hannspree while it does remain on the dv6.  Switch to external screen only and the screen does display on the Hannspree.  Switch to extend and the dv6 remained the primary screen, and the Hannspree can only show the screen saver.

Hi @MikeD48 
Welcome to the HP Forums!
It is a fantastic  place to find answers and suggestions!
For you to have the best experience in the HP forum I would like to direct your attention to the HP Forums Guide Learn How to Post and More
Have you done all your Windows updates?
Have you ran the  HP Support Assistant to aid with HP updates?
Have you ran the Windows troubleshooter?
Understanding multiple monitors from windows.microsoft.com may also help.
If the above has not helped I would do a Refresh Your PC to Resolve Problems (Windows 8) with the exteranl monitor disconnected.
This returns the notebook back to defaults.
HP & Windows 8.1 Update
Now without reconnecting the external monitor redo your Windows 8.1 update. The above link may assist you with that process.
Please be sure all updates are done before reattempting the update.
Now if  you reconnect your external are you able to set it up correctly?
Good Luck!
Sparkles1
I work on behalf of HP
Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
Click the “Kudos, Thumbs Up" on the bottom right to say “Thanks” for helping!

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