I can see that you are encountering the message "Cannot install because you do not have write permission to this folder" while trying to install "something" in MATLAB. I assume that you are using version R2024a.
If you are trying to install a toolbox, you can refer to the following MATLAB Answers post: https://www.mathworks.com/matlabcentral/answers/2081056-while-installing-add-on-it-gives-you-do-not-have-write-permissions-to-folder-e-basecode-sm-u
If you are trying to install an add-on, you can refer to the following MATLAB Answers post: https://www.mathworks.com/matlabcentral/answers/2097931-matlab-unable-to-install-add-ons
If you are trying to install a support package, you can refer to the following MATLAB Answers post: https://www.mathworks.com/matlabcentral/answers/2037671-why-do-i-receive-the-error-unable-to-install-the-support-package-to-the-following-folder-because-yo
By following the respective steps, you should be able to resolve the permissions issue and proceed with the installation.