Thread: How many activations?

I have vista installed on one of my computers, but I'd like to put it on a second. Do I need to purchase a second activation key, or will the one i have now work more than once?

I think you already know the answer. You can only use it on one computer, "How many activations" has no relationship to how many computers. You can activate multiple times, but only on the one computer. You will need to purchase another copy of Vista for your other computer.