Deactivating and Removing a MATLAB Installation

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Deactivating a License Removing a MATLAB Installation Removing the License Manager

Deactivating a License

Deactivating a license renders the MathWorks software unusable on a particular computer. Deactivation can be a useful way to manage usage of the software on multiple computers. For example, if you want to install and activate the software on a new computer, and you've already performed all the activations allowed by your license, you can deactivate one of your existing installations to enable activation on your new computer.

The deactivation process has two parts: the license must be deactivated on your computer and must also be deactivated in MathWorks systems. If you have Internet connectivity, the MathWorks deactivation application can take care of both parts of the process. If you do not have Internet connectivity, the deactivation application disables the software on your computer and gives you a deactivation string. To complete the deactivation process, you must visit the MathWorks Web site and enter the deactivation string. When you deactivate a license, you deactivate all the installations of that license on a particular computer.

Note   Deactivating a license and removing the software are separate activities. You can deactivate a license without removing the software from your computer. When you remove a MATLAB installation, you remove the deactivation application, so it is best to deactivate before removing your installation. For more information about removing an installation, see Removing a MATLAB Installation.

To deactivate a license on your computer, follow this procedure:

1. Start the deactivation application, using any of the following methods:

   • View the MATLAB Help menu and select Licensing > Deactivate Software. MATLAB must be running.

   • Navigate to the folder in which you installed the MATLAB application package and double-click the deactivation application icon. To view the contents of the MATLAB application package, right-click (or control-click) the package and select Show Package Contents.

2. Select the license you want to deactivate and click Deactivate

   When the deactivation application starts, it displays the licenses you currently have installed and activated on your system. If you start this from within MATLAB, the license you are using is preselected.

   

   If your Internet connection requires a proxy server, click the Connection Settings button and enter the server name and port information. Click OK to return to the MathWorks Software Deactivation dialog box.

   

3. Confirm the deactivation by clicking Yes. The deactivation application contacts The MathWorks to deactivate the license.

   

4. Complete the deactivation. If the deactivation application can deactivate the license on your computer and at The MathWorks, it displays the Deactivation Complete dialog box. Click OK to return to the MathWorks Software Deactivation dialog box, where you can choose to deactivate other licenses.

   

   If the deactivation application can deactivate the license on your computer but not in MathWorks systems, it displays the Deactivation Next Steps dialog box. This dialog box contains the deactivation string. To complete deactivation, you must go to the MathWorks Web site, log in to your account, and enter the deactivation string. See the License Center help for more information. Click OK to return to the MathWorks Software Deactivation dialog box.

   

5. Select another license from the list to deactivate and repeat the deactivation procedure, or click Close to exit the deactivation application.

   After you deactivate a license, the MathWorks Software Deactivation dialog box displays an additional column listing the status of the licenses.

   

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Removing a MATLAB Installation

Note   Removing the software and deactivating a license are separate activities. You can deactivate a license without removing the software from your computer. When you remove a MATLAB installation, you remove the deactivation application, so it is best to deactivate before removing your installation. For more information about deactivating software, see Deactivating a License.

To remove a MATLAB installation:

1. Get the user name and password of the administrator account on the Macintosh system. Depending on where you installed MATLAB software, you might need administrator privileges to remove it.

2. Exit MATLAB and stop the license manager before removing a MATLAB installation. You can use the lmdown command to stop the license manager. See the installation guide for UNIX for information about the lmdown command.

3. Navigate to your MATLAB installation folder. For example, the installation folder might be named MATLAB_R2009b in your Applications folder.

4. Drag the MATLAB_R2009b folder to the trash, and then select Empty Trash from the Finder menu.

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Removing the License Manager

1. From the Finder, select Go To Folder from the Go menu.

2. In the Go to the folder field in the Go To Folder dialog box, enter:

   /Library/StartupItems/MATLABLmgr

   and click Go. A window titled MATLABLmgr appears, containing several files.

3. Drag the MATLABLmgr folder to the trash, and then select Empty Trash from the Finder menu.

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After You Install

System Requirements

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