pms Posted December 12, 2016 Share Posted December 12, 2016 I have recently had to reload Steam, FSX and do a Reset of Windows 10. All went well until I try to load PMDG 737 NGX onto my PC when I am asked for the Registration Key. After many attempts I continue to get "Key not valid Incident 3240-0869883". At age 84 I need a little help please....... Many thanks Link to comment Share on other sites More sharing options...
il88pp Posted December 13, 2016 Share Posted December 13, 2016 No idea. Found this though: http://www.avsim.com/topic/445540-777-activation-key-problems/ [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
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