You should only use the deactivation option if you are permanently replacing your computer, or if you are certain that you will not need Prism on that computer going forward.

Deactivation will permanently block your license from running on the machine that has been deactivated. Please note that deactivation is permanent (***). Once deactivated, an available activation will be added back to your account so that you can install on a replacement computer. Next to the record for the computer you have replaced, click the Deactivate button. Once logged into your online account page, you can simply scroll to the bottom of the page to see the computer(s) you activated previously.

You can deactivate your old computer via your online account page by logging into your account at You can find additional instructions below depending on your license type. Depending on whether you have a personal license or a group license, you have the ability to permanently deactivate an old computer and free up your license to install Prism on a new machine.

Prism graphpad license