Hi xiaoli,
It's not essential to uninstall MATLAB to add additional toolboxes. Kindly refer to this link - https://www.mathworks.com/matlabcentral/answers/101885-how-do-i-install-additional-toolboxes-into-an-existing-installation-of-matlab
But, if there's a need to uninstall MATLAB or any other toolboxes, then these resources will be helpful -
- Uninstall MATLAB - https://www.mathworks.com/help/install/ug/uninstall-mathworks-products.html
- Uninstall MATLAB toolboxes and support packages - https://www.mathworks.com/help/install/ug/uninstall-matlab-toolboxes-and-support-packages.html
- https://www.mathworks.com/matlabcentral/answers/750934-can-t-uninstall-matlab-2020a-2020b
NOTE: Toolboxes must match the release of MATLAB they are installed into, e.g. you cannot install a toolbox for MATLAB R2022b into MATLAB R2023a.
If none of the above suggested workarounds resolves your issue, please feel free to contact MathWorks Technical Support - https://www.mathworks.com/support/contact_us.html
