How do I update my MATLAB license file for an Individual or Designated Computer license?

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MathWorks Support Team ，2011-4-21

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编辑： MathWorks Support Team ，2023-5-1，11:12

My license has changed and needs to be updated. How do I update my MATLAB license file for an Individual or Designated Computer license?

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MathWorks Support Team 2022-8-25

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编辑：MathWorks Support Team 2023-1-18

If you are able to launch MATLAB

To update your license manually from within MATLAB, perform the following steps:

On the MATLAB toolstrip in Resources, click the down arrow under Help.
Click Licensing.
Select Update Current Licenses...and follow the prompts to update your license.
Restart MATLAB.

If you are unable to launch MATLAB

If your license file has expired or there is another license reason preventing MATLAB from starting, you can update your license by launching the MATLAB activation client.

For instructions on launching the activation client, automatically activating using the activation client.

If you cannot connect to the Internet

If the computer that is running MATLAB cannot connect to the internet, you can download a license file manually from www.mathworks.com on an internet-connected computer and copy the license file to the offline computer.

Sign into www.mathworks.com.
Click your profile picture in the top right and then select My Account.
Select your license number from the list.
Click the Install and Activate tab.
On the right-hand side, under Related Tasks, select Activate to Retrieve License File.
Fill out all required fields and follow prompts. Click Continue.
At Next Steps, click Download License File.
Skip Step 2 and click Done.
Copy the license file to the licenses folder on the offline machine. The following support article contains instructions for finding license file folders on various operating systems:

Where are the license files for MATLAB located?

Start MATLAB. If you encounter difficulties, contact Customer Support.

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Walter Roberson 2022-6-22

Mathworks Support does not read responses here. And the volunteers who read here do not have access to the license database.

You need to contact your license administrator to arrange to get the license renewed. If you are the license administrator you will need to contact Mathworks Sales.

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更多回答（7 个）

Jason Brooks 2015-9-2

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There are two Matlab help areas. One is the small circle in the upper right next to the search documentation box. That's not it. The other is Home (tab) > Resources (section on the far right) > Help > Licensing > Update current license. Just wanted to be more specific because you can find Licensing info with the other help button. It just won't let you update your license.

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Muhammad Sujak MK 2020-7-17

it really works!!! Thanks a lot!

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abdulelah shewoil 2018-2-2

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from where can I get the File Installation Key ??

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Andrei Gherghescu 2022-3-1

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On Linux (Ubuntu), simply calling the matlab executable from the command line shows where it is trying to look for lincese files

```

Diagnostic Information:

Feature: MATLAB

License path: /home/user/.matlab/R2021b_licenses/license_XXX.lic:/home/user/MATLAB/licenses/license.dat:/home/user/MATLAB/licenses

Licensing error: -9,57.

```

Simply placing the new lincese file in the folder /home/user/.matlab/R2021b_licenses solved the issue for me.

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Nicolas Wongso 2015-3-4

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For license updates

How often can you update the license in Matlab?

My current license expires in 57 days, when license is updated will that one last for 57 days as well?

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Nicolas Wongso 2015-3-4

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Also is this license update going to be free?

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Shawn Lyons 2015-4-1

编辑：MathWorks Support Team 2023-5-1，11:12

Nicolas,

It sounds like you may be a user of an annually-renewed license. If your organization will be updating the license, you will need to contact them about any related costs. If you are a university student using an academic headcount license, it is likely that the update will be free, but again, you should contact your university to check their policy on license updates.

For further clarification, feel free to contact MathWorks Support and we can discuss the license update process.

https://www.mathworks.com/support/contact_us.html

-Shawn

MathWorks Support

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kristen bill 2016-7-7

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How do I update my license file on a computer with no internet?

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Sriram Narayanan 2018-9-5

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That tool doesn't let me load in a new Concurrent License file (ie. to point the client at a new server, or if the server name changed). When I run it - still connected to the old server - it says "update not required".

It seems that the only way to get the client to load a new concurrent license configuration is to run the installer.