Amazon UK says that the new operating system, which replaces the crappy Vista software, sold more copies in the first eight hours than Vista has managed to sell in it's entire pre-ordering period. Which is nice.

It's even beaten that Harry Potter bloke sales.

"The launch of Windows 7 has superseded everyone's expectations, storming ahead of Harry Potter and the Deathly Hallows as the biggest grossing pre-order product of all-time at Amazon.co.uk, and demand is still going strong," says Brian McBride, Amazon UK MD.

You can pick up this new slice of fun tomorrow, the 22nd October.