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error 9217 (missing registry key)

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I downloaded and installed P3D 3.0 without problems. Then I tried to activate. After typing in license ID and license password, I got following message: "Error: Registry key could not be opened/created or is missing. (9217)".
How can I solve this problem?
Additional information: I have Windows 10 installed, and I am running P3D 2.5 without problems.
Regards Arndt

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Arndt, try installing again , this time right click on the setup.exe and run as administrator...if you did try removing the UAC.



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Thank you for your advice, Jorge!


UAC is disabled in my setup. I reinstalled P3D 3.0 with right click as an administrator, But unfortunately the problem persists.


Has anyone another suggestion?



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Jorge, you have been right!!!


I learned, that in Windows 10 it isn't sufficient to deactivate UAC in the system control panel. You have to do it in the registry!!! Once I did that, I was able to activate P3D 3.0.


Thank you again, Jorge!

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