: Introduced in 2025, this annual license provides use rights only as long as the subscription is active. If cancelled, the software will eventually become inaccessible. JAM Software Maintenance Renewal
With an updated license key, you can download and install the latest TreeSize build from the customer portal.
: Type or paste your new license key into the field provided. A reinstallation is typically not required, though a restart of the application is necessary for the changes to take effect.
If you have purchased a new license (such as upgrading from Personal to Professional), you do not need to reinstall the software. Open TreeSize. Navigate to the tab on the top ribbon bar.





