Unity manual activation after using a new computer with old datas ?

Hello,
Few month ago, I have Unity correctly installed on my computer (after a manual offline activation, because I'm behind a proxy).
Now, I have a new computer (using my old data).
But when I try to use Unity again, it doesn't work.
Il try to follow again the offline manual activation. It says "Machine identification is invalid for current licence" (see attached file).
Manual activation create an new ".alf'" file (with actual date time), but at restart, Unity ask for an ".ulf" file wich is an old one on my computer.
How can I generate (or download) a valid new ".ulf" file, and reactivate Unity, please ?
Thank's for your help.
Best regards
Vincent

 

Did you find any solution for this ?

 

Using a command prompt you need to navigate to the location of the Unity license file. Below is how you reach the folder. Once you're there just type "explorer ." without the quotes and it will open an explorer window to that folder. From there you can either move (recommended - just in case this breaks anything you can move it back) or delete the file.