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.

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Marius Prinsloo 2017-3-25

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https://ww2.mathworks.cn/matlabcentral/answers/331852-no-more-activations-are-available-for-this-user-you-may-need-to-deactivate-a-previously-activated-c

评论： Steven Lord 2021-10-19

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?

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Suryadiputra Liawatimena 2019-6-17

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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.

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Answer 1

Steven Lord 2019-6-17

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https://ww2.mathworks.cn/matlabcentral/answers/331852-no-more-activations-are-available-for-this-user-you-may-need-to-deactivate-a-previously-activated-c#answer_379545

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.