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PMDG 777X Activation / Error:Activation Library handle creation failed

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After a clean installation of PMDG 777X I tried to activate it but I got this message:



777X Activation

ERROR: Activation library handle creation failed



(just to mention that before I format my pc the plane was working fine with the same windows, WIN7 - Ultimate x64, since September)


From PMDG, indicated the steps below which had not result:


1. The activation key is active.

2. Reinstall, (with or without "right-click, Run as administrator").

3. administrative rights to the program files which FSX is installed.

4. Disable all programs related to computer security.(Antivirus-Firewall-AntiMalware)


Do you have any idea what is happening?


Thank you

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