I was curious to see how long it takes on my main PC (Windows 7 x64), but kind of missed it.
I started the installation and noticed that it had to download ~80MB, so I went back to continue working on some video footage. A little over 5 minutes later, I switched back to see how the downloading was doing and it said that the computer must be restarted, so I clicked “Restart now”. It took about two minutes to shutdown to do some final updating and about another minute during the boot up before displaying a screen that Service Pack 1 is installed.
Certainly nothing like the tedious process I remember with Windows XP SP3, but then again, this PC has a Vertex 2 SSD.
I’m sure installing it on my HDD based Netbook will be a different story . . .