If you are installing from the blue disc, you shouldn't have any problems.
But remember to right-click the install program and "Run As Administrator".
If you are installing from an older Black and White disc, there are a few extra steps to follow.
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Re: CircuitLab simulation
Have you tried LTspice? It is totally free and great support either on YouTube or from forums around.
Ioannis Today, 18:24I admit, it is a bit strange if the component is not in the lib and you have somehow to add...