matlab无法更新

按照官方教程，我试图通过点击matlab右上角的通知图标并选择安装更新

来为我的预行试用版更新2026a Prerelease Update3版本

我现在的版本为

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MATLAB 版本: 26.1.0.3030274 (R2026a) Prerelease

MATLAB 许可证编号: Prerelease

操作系统: Microsoft Windows 11 Pro Version 10.0 (Build 26200)

Java 版本: Java is not loaded

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但是在点击安装更新之后没有任何反应，也没有任何卡顿，就好像没有点击过‘安装更新’按钮一样，在等待一段时间后，并没有任何结果

另外，我发现matlab在更新许可证并重启后似乎并没有成功的获取我的新许可证，这是否是我没有重启电脑的原因

以上为我的全部问题，此致，敬礼

Answer 1

[Adarsh]

Hi @瑛杰,

From my understanding, MATLAB R2026a Prerelease is installed on Windows 11, but clicking “Install Update” from the notification icon does not trigger any visible action. You also observed that after updating and restarting MATLAB, the expected update behavior did not occur.

When the in-product update action does not respond, there are a few reliable ways to proceed.

One option is to uninstall MATLAB and perform a clean online installation using the latest MATLAB installer downloaded from the MathWorks website. This approach downloads the most recent installation files directly. If many products are selected, the installation can sometimes be less reliable, so it is usually recommended to install MATLAB first and then add the remaining toolboxes afterward.

Alternatively, if updating through the internet is not practical, MATLAB can be updated using the offline update workflow. This method allows you to download the update files on an online machine and apply them to the target machine.

https://www.mathworks.com/help/install/ug/update-mathworks-software-on-offline-machine.html

This page explains how to perform an update when direct online updating is not available.

Another supported approach is to manually download and install the MATLAB update package. This can help in cases where the notification-based update does not launch as expected.

https://www.mathworks.com/matlabcentral/answers/456448-how-can-i-download-and-install-a-matlab-update-manually

This post outlines the steps for performing a manual update.

Since update behavior can sometimes be affected by licensing or sign-in state, the following resources may also be helpful for verifying that MATLAB is correctly recognizing the current entitlement and refresh state:

https://www.mathworks.com/help/install/ug/update-your-license.html

This page explains how MATLAB updates and refreshes license information.

https://www.mathworks.com/help/matlab/matlab_env/manage-your-licenses.html

This page provides an overview of managing and validating licenses within MATLAB.

https://www.mathworks.com/matlabcentral/answers/2139671-i-am-trying-to-open-matlab-but-it-is-showing-you-dont-have-a-valid-license-file-it-was-working-fi

This post discusses common scenarios where MATLAB does not recognize license state correctly and the typical resolution steps.

I hope this helps!