Cannot Find A Valid License Key For Isis Professional On This Computer !link! -

To isolate the specific cause, perform the following checks:

The error is most likely resolved by addressing permission issues or restarting the background licensing service. If the steps above do not resolve the issue, the license file may be corrupt or expired. In this event, contact the software support channel with your (usually found in the Help > About menu or a separate utility tool) to request a replacement key. To isolate the specific cause, perform the following