Mathematica Password Requests

If you have lost the password that was displayed on your Mathematica license certificate, please contact Customer Service to request a new one.

If you need a new password because you are changing machines or operating systems, please read our system transfer information.

If you have already registered and obtained a password but unexpectedly need to get a new one, it's possible that your MathID number has changed. The MathID number may change if your hard drive has been reconfigured or significantly altered. To request a new password, please send mail to contact Customer Service.

It is important to include the following information to help expedite your password request:

• Your Mathematica license number
• Your new MathID number
• The changes that were made to your machine before a new password was needed

Even if you submit your password request after our regular office hours, a new password will still be sent to you as quickly as possible.

Locating Your MathID Number

For Macintosh and Windows versions of Mathematica, the MathID number can be found in the dialog box viewed upon installation. (The top of this dialog box says, "Please personalize your copy of Mathematica.") You may also retrieve a MathID number as the value of $MachineID from within Mathematica. For Unix versions, please refer to your Getting Started with Mathematica guide.

Windows dialog box

Mac OS X dialog box