Windows 7 Activation

[The Mad Rapper]

I've installed Windows 7 Beta on my daughter's laptop. I understand it stops working after 30 days without a key. Is it still possible to get one, and if so, how?

TIA

 

[The Mad Rapper]

Thank you so much. If we use one of those keys, can she continue to use the Beta indefinitely?

 

[The Mad Rapper]

Thanks