No more activations are available for this user. You may need to deactivate a previously activated computer before you can activate this computer. See Solution 1-6379G9 for more details.

I have only 2 computer running Matlab, both PCs. Want to install it on my new Apple Mac Pro but error above appears. I had it previously installed on my two sons Apple Mac notebooks to learn them Matlab but removed it due to lack of interest from their side.

Is it limited to 2 computer installations ? Previously I had 3 installations. Could be that the user name should be exactly the same as in the previous installations?

[Suryadiputra Liawatimena]

Unfortunately, matlab at my notebook different license number, so I can not deactivate it on my notebook. My installation on my ubuntu machine also get

You may need to deactivate a previously activated computer before you can activate this computer. See Solution 1-6379G9 for more details.

Please help. Thank you.

Answer 1

[Steven Lord]

See this Answer from MathWorks Support Team. It describes how to deactivate a license even if you don't have the computer on which the license was previously activated.

Answer 2

[Shkelqim Kuka]

how to deactivate license on my older pc and activate on new

[Steven Lord]

See the answer to which I linked on June 17th, 2019.