Amazon UK’s pre-order for Windows 7 officially went live on July 15, 2009 at 00:00 BST and the “promo” is set to end on August 9, 2009 at 23:59 BST. But don’t wait until the last minute because the offer is good only while supplies last! The US pre-order of Windows 7 just ended a couple of days ago. Now, it’s Europe’s turn!

Windows 7 Home Premium E already appears to be sold out on Amazon UK while Windows 7 Professional E still looks plentiful.

Pre-order price for Home Premium E is £50 while for Professional E, £100. But Amazon UK looks to be selling the latter for just £90 right now!

Update (July 17, 2009): Wow! I guess they’ve run out of Professional E pretty fast and Home Premium looks to be selling for £75 instead of the stated £50.