My license says error is "remove activations" but isn't activated on any computer anymore, what should I do?

I bought Unity years ago it was version 3.X and I also have the iOS and Android modules added. I used it regularly years ago but several times had to make a fresh Windows install on my PC (at the end I will share why I had to do the fresh windows installs). Currently I am trying to install 3.X to start using it again - the install finished but when it attempted to launch it asked for “Internet Activation” - however when I put my key in it says “Serial has reached the maximum number of activations. Disable existing activations to reuse this serial key.” However I have 0 activations on the license AND this is the PC it was active on ages ago.

How can I get this to work with licensing working again? I am on the same PC, the same person, have the purchase documentation proof - I just currently can’t activate and use Unity 3.X…

The Windows issues:

  • Fresh install when Win 8 came since I got a license
  • Win 8 gave me the free Win 10 upgrade license however that update didnt work so I had to freshly install Win 10 (from scratch, saved nothing)
  • A new Win 10 update (a few weeks ago) broke Win10 on my PC and my Tablet and a laptop I help work on and fix - fresh brand new Win 10 install

Hence needing to re-install Unity but being unable to.

Unity answers is for questions about development with Unity for community. For licensing issues you should contact Unity support directly. https://unity3d.com/contact