Manage Your Licenses

You can manage many licensing-related tasks, such as activating licenses, deactivating licenses, or updating licenses, through MATLAB^®or your MathWorks^®Account onwww.tatmou.com.

Note

Some options for license actions require an internet connection. If your internet connection requires a proxy server, use MATLAB web preferences to specify the server host and port. See为连接到th指定代理服务器设置e Internetfor more information.

Update Current Licenses

The simplest way to update your license file is from within MATLAB. You should perform this task within your MathWorks Account only if you cannot access MathWorks from your computer. For additional details on updating licenses, seeUpdate Your License, or, if you are a license administrator, seeUpdate Network License.

User Interface	Description
MATLAB	On theHometab, in theResourcessection, clickHelp>Licensing>Update Current Licenses. MATLAB displays a list of all your MathWorks licenses on this computer, with their status. When you select a license and clickUpdate Selected License, MATLAB contacts MathWorks to retrieve the most current version of the License File for the license. The update process overwrites the current License File on your system. You need to restart MATLAB.
MathWorks Account	Sign in tomathworks.com. If you are already signed in, selectMy Accountfrom the drop-down menu under your account icon. UnderMy Software, click the license you want to update. If you have more licenses than fit on the screen, clickView additional Licenses or Trialsand then click the license you want. Clicking a license takes you to the License Center. In the License Center, click the Install and Activate tab. ClickUpdate License File. Click one of the icons underGet License File. You can download the license file or have it emailed to you. Follow all prompts. MathWorks retrieves the most current version of the License File for the license. You need to restart MATLAB.

User Interface

Description

MATLAB

On theHometab, in theResourcessection, clickHelp>Licensing>Update Current Licenses.

MATLAB displays a list of all your MathWorks licenses on this computer, with their status. When you select a license and clickUpdate Selected License, MATLAB contacts MathWorks to retrieve the most current version of the License File for the license. The update process overwrites the current License File on your system. You need to restart MATLAB.

MathWorks Account

Sign in tomathworks.com. If you are already signed in, selectMy Accountfrom the drop-down menu under your account icon.
UnderMy Software, click the license you want to update. If you have more licenses than fit on the screen, clickView additional Licenses or Trialsand then click the license you want. Clicking a license takes you to the License Center.
In the License Center, click the Install and Activate tab.
ClickUpdate License File.
Click one of the icons underGet License File. You can download the license file or have it emailed to you.
Follow all prompts.

MathWorks retrieves the most current version of the License File for the license. You need to restart MATLAB.

Activate Software

The simplest way to activate your software is from within MATLAB. You should perform this task within your MathWorks Account only if your computer cannot communicate with MathWorks. For additional details on activation, seeActivate MATLAB Installation Manually.

User Interface	Description
MATLAB	On theHometab, in theResourcessection, clickHelp>Licensing>Activate. MATLAB starts the activation application, which walks you through the activation process. Answer the questions on each dialog box, select the license you want to activate, and clickActivate.
MathWorks Account	Sign in tomathworks.com. If you are already signed in, selectMy Accountfrom the drop-down menu under your account icon. UnderMy Software, click the license you want to activate. If you have more licenses than fit on the screen, clickView additional Licenses or Trials, and then click the license you want. Click the Install and Activate tab. ClickActivate to Retrieve License FileorActivate a Computer. Follow all prompts.

User Interface

Description

MATLAB

On theHometab, in theResourcessection, clickHelp>Licensing>Activate.

MATLAB starts the activation application, which walks you through the activation process. Answer the questions on each dialog box, select the license you want to activate, and clickActivate.

MathWorks Account

Sign in tomathworks.com. If you are already signed in, selectMy Accountfrom the drop-down menu under your account icon.
UnderMy Software, click the license you want to activate. If you have more licenses than fit on the screen, clickView additional Licenses or Trials, and then click the license you want.
Click the Install and Activate tab.
ClickActivate to Retrieve License FileorActivate a Computer.
Follow all prompts.

Deactivate Software

Although you can deactivate the software from within MATLAB, if you cannot access the computer to deactivate, you can still deactivate the software from your MathWorks Account.

For more details on deactivating MathWorks software, seeDeactivate Your Installation.

User Interface	Description
MATLAB	On theHometab, in theResourcessection, clickHelp>Licensing>Activate>Deactivate. MATLAB displays a list of all your MathWorks licenses on this computer, with their status. When you select a license and clickDeactivate, MATLAB deactivates all releases on this computer associated with the license, and updates the licensing information at the MathWorks website. You will not be able to use MathWorks software with that license on this computer. If you are not connected to the Internet, MATLAB deactivates the licenses on your computer but cannot update the corresponding license information stored at the MathWorks website. In this scenario, MATLAB returns adeactivation string. To complete deactivation, save a copy of this string, go to a computer with an internet connection, and visit the License Center at the MathWorks website. There you can sign in to your MathWorks Account and enter the deactivation string.
MathWorks Account	Sign in tomathworks.com. If you are already signed in, selectMy Accountfrom the drop-down menu under your account icon. UnderMy Software, click the license you want to deactivate. If you have more licenses than fit on the screen, clickView additional Licenses or Trials, and then click the license you want. Click the Install and Activate tab. Find the activated computer in the list, then click the deactivate iconon the right-hand side of the display. Follow all prompts. MathWorks deactivates all releases on the specified computer, and updates the licensing information in License Center.

User Interface

Description

MATLAB

On theHometab, in theResourcessection, clickHelp>Licensing>Activate>Deactivate.

MATLAB displays a list of all your MathWorks licenses on this computer, with their status. When you select a license and clickDeactivate, MATLAB deactivates all releases on this computer associated with the license, and updates the licensing information at the MathWorks website. You will not be able to use MathWorks software with that license on this computer.

If you are not connected to the Internet, MATLAB deactivates the licenses on your computer but cannot update the corresponding license information stored at the MathWorks website. In this scenario, MATLAB returns adeactivation string. To complete deactivation, save a copy of this string, go to a computer with an internet connection, and visit the License Center at the MathWorks website. There you can sign in to your MathWorks Account and enter the deactivation string.

MathWorks Account

Sign in tomathworks.com. If you are already signed in, selectMy Accountfrom the drop-down menu under your account icon.
UnderMy Software, click the license you want to deactivate. If you have more licenses than fit on the screen, clickView additional Licenses or Trials, and then click the license you want.
Click the Install and Activate tab.
Find the activated computer in the list, then click the deactivate iconon the right-hand side of the display.
Follow all prompts.

MathWorks deactivates all releases on the specified computer, and updates the licensing information in License Center.

Link a License to Your Account

User Interface	Description
MATLAB	You cannot perform this task from within MATLAB.
MathWorks Account	Sign in tomathworks.com. If you are already signed in, selectMy Accountfrom the drop-down menu under your account icon. UnderMy Software, clickLink an additional license. Follow all prompts. If you are linking a network license, you may need to get the license number from your organization's license administrator.

Get a Trial

Start a free 30-day trial of MathWorks software.

Although you can get a trial from within MATLAB or from your MathWorks Account, the simplest way is to go directly toFree MATLAB Trialonmathworks.com.

User Interface	Description
MATLAB	To get a trial, go toAdd-Ons>Get Add-Ons. Click on a toolbox, and then clickGet Trial. Follow all prompts.
MathWorks Account	Sign in tomathworks.com. If you are already signed in, selectMy Accountfrom the drop-down menu under your account icon. UnderMy Software, clickGet a trial. Follow all prompts.