You cannot activate your TestLeft license on a virtual computer. You can activate it on a physical computer only.
To create tests in a virtual environment, you use virtual machines as workstations and use some physical computer as the License Manager PC. This approach means that you have to use a Floating User license of TestLeft. Node-Locked licenses of TestLeft cannot be used for testing on virtual machines.
To run automated tests in a virtual environment, you also can use TestExecute or TestComplete licensed with a Floating User license.
For information on running automated tests on virtual machines, see Using TestLeft on Virtual Machines.
You can also try resolving the problem by using the Licensing Troubleshooter on our web site: