To “meter” Windows 7 follow these instructions:
1. Click on the Windows button on your taskbar
2. Type “windows update” in the Search box
3. Click on Windows update in the Programs section
4. Click on Change Settings
7. Click OK to make the change permanent.
You will get occasional requests about downloading updates, follow the instructions and just choose the priority updates, or download all of them when you are on an un-metered connection.
You should now go back to the Setup overview and continue your installation.