Flightsimulator product code already used

Was the DVD set purchased new? I'm afraid it's impossible to move products between accounts, once the code is used it's used.

The DVDs are now completely outdated and he would have to download the game again anyway.

You can sign him up for PC gamepass, which includes Flight Simulator, or you can return thr DVDs and purchase thr game from the windows Store or Steam

Hi. My name is Brilliant and I am happy to assist you today.

Here is a thread with a possible fix to the issue you're currently facing: https://answers.microsoft.com/threa...led Microsoft,to activate the game initially.

Some of the information on the thread states that:
If you have reinstalled Microsoft Flight Simulator and are receiving an error message indicating that your activation code has already been used, ensure that you are signed in to the correct Microsoft account that you used to activate the game initially.

I hope this helps resolve your issue.

This info could not be provided by anyone in the forums. I do not believe billing has is able to provide this but cannot say for certain. I would suggest contacting the provider of the key to see what they can do for you.

you say "C:\Users\<user>\AppData\Local\FlightSimulator "

however, in my install, there is no "FlightSimulator" in the "Local" subdirectory.

Why wouldn't it install to the same directory as yours?

Fyi flightsimulator is a xbox games for windows 10