On a Dell Latitude E6410 with a i7 620m intel processor 4GB ram, 128gb solid state drive Windows 32 bit (86x) using Microsoft Update, it took about 14 minutes.
On a HP Pavilion dv6915nr laptop running a fresh install of Windows 7 32 bit, I was having trouble using the Microsoft update software. Instead, I downloaded the msi distribution pack for SP1 and ran that. It took 8 minutes to download, and then 49 minutes to install, so just under the one hour mark that Microsoft said it takes.
-Post your times below in the comments
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