How to (Re)activate a 2016 Autodesk Perpetual License in 2026
1. Understanding the Situation in 2026
You legally own a perpetual Autodesk license from 2016. In principle, a perpetual license means you may use the software indefinitely. In practice, however, Autodesk has made reactivation of older versions increasingly difficult. Understanding these restrictions is essential before attempting anything.
Although originally intended as a measure to prevent illegal (multiple) installations, Autodesk now misuses the mandatory activation requirement to remotely deactivate its perpetual licences: "For unsupported versions, you cannot get a new activation code to reactivate that version for any device."
Source: autodesk.com/support/account/manage/versions/support-lifecycle
Autodesk officially retired the LTU application as of that date, removing another previously available path for moving a 2016 license to a new machine.
Source: autodesk.com — Autodesk License Transfer Utility no longer supported
2. The Legal Situation in the EU: Software Resale and the ECJ Decision UsedSoft v. Oracle (Case C-128/11)
Within the EU, buying and selling a genuine perpetual software licence is entirely lawful, provided the seller deletes their copy, the licence was originally sold for an unlimited term against a one-time fee, and the full licence is transferred intact. No contract clause by a publisher can override this — it is a matter of EU law that supersedes individual licence agreements.
Within the EU, your rights as a perpetual licence holder are significantly stronger than in the US — regardless of whether you purchased your licence recently as a second-hand copy or originally from Autodesk years ago. Autodesk is well aware of the strong position that licence holders enjoy under European law, and many users report that persistent contact with Autodesk support — clearly referencing their EU rights and the ECJ ruling — has resulted in successful activation.
manage.autodesk.com — Confirm the serial number and product key are visible under your account.
autodesk.com/support — Use the chat or phone option. Specifically state that you hold a valid perpetual license, that the product is registered to your account, and that you need assistance with activation on a replacement machine due to hardware failure or replacement.
Front-line support agents may follow a script that leads to a dead end. Ask to be escalated to a licensing specialist. Reference the fact that you have a legitimate registered perpetual license that is confirmed in your Autodesk Account — even if it is no longer visibly displayed in the current account interface, the registration record exists internally and Autodesk support can look it up.
