That's correct, as soon as you add the speech recognition control you should be able to speak loudly and see the waves in the top right bar of the speech recognition window. If you don't see any waves your mic might be muted or maybe the on-board microphone drivers need to be updated.

To Rich: Yes , It looks like. Microfon detect voice, waves are viewed in the ezb window for voice recognition and control windows environment works.

To Jeremie: No, microphone detects voice. If the microphone has problem in ezb then Windows will have the same problem, hasn't it ?

Train your profile more. Speak clearer.

If it's showing the sound wave then the control is working, if nothing happens when you speak the problem lies with your speech profile. Further training is required. It may also pay to adjust the phrases in the speech recognition control.

It may be a stupid question but you are trying phrases that are set up in the voice recognition control aren't you?

To Rich: No I didn't. Where can I do this? I tried only training wizard...

Click the gear icon (highlighted red below)

That should open this dialogue, the phrases I've highlighted red.

Yes, I Know, where I defined voice commands, but how can I learn this computer these words. For me is little bit strange, that I have other computer, where commands are functional without training.