Click on the Download and Manage Software tab, tap on the Get License Key to see the
currently activated keys. Choose the License Key for the PC you want to upgrade and press the
Swap Key. If you are unsure of which key is linked with which computer, tap on the Trend Micro
icon in the lower right section of your screen and Open the Main Console. Click on Other
Settings and then choose Subscription. The original key is displayed as the Serial number. Then
you can go back to the Download and Manage Software page and tap the Swap Key button next
to the correct key to be issued a new one that can be used when installing your Titanium
version of Trend Micro Security Suite.