How to deactivate Matbal R2021b when I am getting errr 9

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João Serras
João Serras 2023-5-10
编辑： Mayank Sengar 2023-5-22
Hi. I need to deactivate and unistall R2021b (just upgraded to 2023b but I can't because to the error -9. Now R2023b wont't launch because I am exceeding the nr of license...
can anyone help?

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回答（1 个）

Mayank Sengar
Mayank Sengar 2023-5-22
编辑：Mayank Sengar 2023-5-22
Kindly use the following documentation link for the deactivating and uninstalling the MATLAB R2021b.
For Deactivating the MATLAB: Deactivate Your Installation - MATLAB & Simulink (mathworks.com)
For Uninstalling the MATLAB: Uninstall MathWorks Products - MATLAB & Simulink
Regarding the license issue with MATLAB R2023b, you may want to contact MathWorks customer support for assistance.

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