Win 10 Updated...Machine ID does not match

[ItchyEye]

I have only used my x-aviation library of 4 aircraft on this machine.  But, during the next license check, it is reported as Machine ID invalid.  I put my username and password in and it brings up a box listing 3 ID's.  All of them are older than the next and all refer to the same computer.  I don't want to make the mistake of freezing, so, what should I do.  

 

Any help is appreciated and how to remedy.

[Cameron]

You should de-activate the oldest authorization.