Hello,
The Capture One activation is coded against a number of items of system information of which the Drive ID is one. Thus, the activation that you had on your old hard disk is no longer valid on your new SSD.
There are two alternatives to you:
1: Login to the main phase one website at
http://www.phaseone.com. This should take you to the "My Account' page from where you can follow the link to the "License Codes" area of your account at
http://www.phaseone.com/en/My-Account/LicenseManagement.aspx. You should then be able to select your license code from the drop down box an then select 'Deactivate'. This will deactivate
all activations associated with that license code leaving you your two activations to use. You can then re-activate CaptureOne using the original license code on each of the two machines that you wish to employ it on.
2: If you still have it, and it has not been reformatted or such, put the old disk back in the computer and then run capture one - it should report that it is activated. You should then be able to use the dialog accessed via "Help->License Information" to deactivate that installation (there is a 'deactivate' button in bottom right of this dialog). You can now put the new SSD back in the system. You should now be able to activate the new installation using the license key you were originally provided.
The first method is easier but involves re-activating any other machine that you have Capture One installed on. The second is more involved but should not disturb the activation on any second machine.
Wade.