How can I utilise the windows 8.1 key I have purchased? (please help!)

8shaky1

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Dec 28, 2013
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Ok so I think I've made a pretty stupid mistake. I have recently purchased an entire pc from scratch including windows 8.1 from the Microsoft store. Unfortunately, I think I have only purchased a product key as I have not received any disc and I ordered in nearly 2 weeks ago and I have had a product key emailed to me.

I wondered if there is any way of installing windows 8.1 onto my pc without an actual disc? If not, any solutions would be really helpful. I might have a disc with windows vista on somewhere so I don't know if that helps but I thought I'd mention it anyway.

Any help is hugely appreciated! Thanks.