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Cannot start trial

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I have downloaded the trial version and installed it but it does not put an icon on the desktop or when I click Start program and get the little window then press start trial I get this message: 

Error: The specified service does not exist as an installed service ( Exception from HRESULT: 0x80070424) Purchase a license and enter license key.

Then I looked to find where it installed itself and it is nowhere to be found. Very strange.

I am using Windows 10 and Prepar3D_v3_Academic_3.3.3.17556.

Could you kindly help me, please?

kind regards


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hi, I downloaded the trial and I had an issue with my computer resulting in doin a restore.  now when I try and launch the trial I receive the following message:


"a license key can only be activated once for any pc and on a maximum of 1 pc. please purchase a license and enter the license key in the boxes below."


Is there anything you can do to assist me.



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