Almost all of the updates for Windows 7 are included in the full, standalone package of Service Pack 1 -
Windows 7 and Windows Server 2008 R2 Service Pack 1 (KB976932)
For a small fee Microsoft will mail you a Windows SP1 installation DVD:
Get Windows 7 Service Pack 1 (SP1) on DVD
Microsoft recommends that 2 updates which specifically address issues associated with SP1
may be installed prior to installing SP1 obtained from
Windows Update -
You do not have the option of downloading Windows 7 SP1 when you use Windows Update to check for updates
The updates in question are listed under
Method 2: Check for pending updates on the above KB article.
KB976902 is
included in the SP1 DVD and the full, standalone SP1 package that can be downloaded from the MS Download Center. If you are going to order SP1 on DVD, then skip KB976902.
Strongly suggest that these updates be installed as
may means that they
must installed to prevent issues installing
future Service Packs -
KB2534366 Windows 7 Sp1 installation fails on a machine with all Language packs installed Error 0xC0000009A
KB2533552 An update that prevents a "0xC0000034" error message when you try to install Windows 7 SP1 or Windows Server 2008 R2 SP1 is available
Then follow Shawn's tip about downloading and saving the updates that will be offered to the system
after you've installed SP1.
Doing the above will save you much more time as opposed to doing it over a slow internet connection.