Also doing a package and finding it sets it to Windows 10x86 is really annoying and i am tempted to do the database fix as above.
Is this a label you're seeing that indicates Win10x86? Or are you unable to attach the Package to an x64 system? If it's the former, this could be a simple bug in the gui that wouldn't impact usability. If it's the latter, it obviously affects usability of the product.