Perks390 Posted March 1, 2015 Share Posted March 1, 2015 Hi all, I have had FSX for about 2 years now but when ever I have tried to install it, I get an error on the activation screen saying "Invalid product key". I have Googled it and it looks like many people have this issue, I installed the Service Packs but still didn't work. Does anyone know of a way to get around it or fix it? Link to comment Share on other sites More sharing options...
jandjfrench Posted March 1, 2015 Share Posted March 1, 2015 If you had it installed previously you may want to try this: MS Software Reset Licensing mskb928080.exe Link to comment Share on other sites More sharing options...
evm Posted March 1, 2015 Share Posted March 1, 2015 If it never worked, then the key may be invalid... I would contact Microsoft if I were you and check that you indeed have a valid activation key. Link to comment Share on other sites More sharing options...
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