I don't expect OS hardware compatibility to be an issue for the next decade or so. Windows has a pretty good track record of being backwards compatible. I guess 3ds max 5 will still run fine. I've moved to Houdini and just want to keep 3ds Max around for legacy stuff and being able to access older files and assets.
But that's all besides the point, I don't expect Autodesk to release a tool to remove the license check because that would be, shock and horror, consumer friendly.
Which leaves the option of user removing the DRM themselves for which the follow appies:
https://eur-lex.europa.eu/legal-content/en/TXT/?uri=CELEX:32009L0024
(13) | The exclusive rights of the author to prevent the unauthorised reproduction of his work should be subject to a limited exception in the case of a computer program to allow the reproduction technically necessary for the use of that program by the lawful acquirer. This means that the acts of loading and running necessary for the use of a copy of a program which has been lawfully acquired, and the act of correction of its errors, may not be prohibited by contract. In the absence of specific contractual provisions, including when a copy of the program has been sold, any other act necessary for the use of the copy of a program may be performed in accordance with its intended purpose by a lawful acquirer of that copy. |
For those in the EU:
This: "This means that the acts of loading and running necessary for the use of a copy of a program which has been lawfully acquired, and the act of correction of its errors, may not be prohibited by contract. "
This basically means it's ok to remove DRM as long as you have a valid license to use the software. The moment Autodesk stops activation it becomes "necessary" to crack the software for loading and running it.