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It's not with all windows 10 computers. Juste sometimes... 

We used version 6.0.11622.6115

Good morning,, 

I've the same problem sometime when I take control directy or with a code session on windows 10 computers.

Sometimes screen is not black but I can't move the mouse, just the keyboard and session user is automaticly blocked. 

If I restart the computer, it's work. Do you know if a fix existing ?