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#31
Do you have any computer stores in your locale that you can purchase it from? PC World, Comet, Curry's, etc.
Don't buy them off ebay. Check out Amazon sellers, there OEM verisons are cheap and genuine.
Amazon.co.uk: oem windows 7
You can buy it from Microsoft directly, as a download or as a disk.
Ignatzatsonic is quite right and you have full support from Microsoft should anything go wrong with your purchase.
Buy xbox, download microsoft office and windows 7 from store UK
I'd rather pay a little more for peace of mind than buy cheap and get a whole load of trouble.
This forum is full of threads pointing out the pitfalls of places such as eBay and Amazon.