Windows 7 Update Pack Download

"There isn't such a product from Microsoft, but there are alternatives.

See this : Download Windows 7 Updates Offline with WSUS Offline Update.

WSUS Offline Update lets you to easily
download patches and updates for your
Windows and Office without going
through the whole procedure on
Microsoft’s Windows Update website.

You can also download Windows 7
updates on USB drive and carry with
you to install on computers not
connected to internet.

New : SP2 for Windows 7 (and 8.1) has arrived

Microsoft has published what is actually SP2 for Windows 7 and 8.1.
This update will not be available from Windows Update for some unknown reason.

Read about how to get it in the article :
Microsoft overhauls Windows 7 and 8.1 updating -- but don't call it a service pack."