I prefer to know for a fact what the fully correct and optimized solution is, so I would actually use the snapshot tool to figure this out, but since I don't have the group policy interface on Home edition to test this for you, I've looked at TenForums for a solution instead. The keys they think you need are in option five of their tutorial (
link) and are pasted below, but you'll need to modify the dword value to 7 days instead of 30.
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate]
"DeferQualityUpdates"=dword:00000001
"DeferQualityUpdatesPeriodInDays"=dword:0000001e
"PauseQualityUpdatesStartTime"=""
I don't see any reference to DeferQualityUpdates in my registry, which means there's a chance that key is extraneous and not needed for this tweak to work properly. A snapshot tool would verify this easily, and so would some basic troubleshooting steps.
Also, PauseQualityUpdatesStartTime on this tweak is most likely to be extraneous, because that should only be needed if you previously used a group policy to pause updates, which doesn't happen on a default install. They probably added this after too many people reported the tutorial as not working, due to the fact that many users don't realize they have a bunch of group policies from other tools/scripts that are conflicting. On that note, my pausing guide does not use group policies, so mine shouldn't interfere with this TenForums tutorial.
Less is best when it comes to tweaking, because the potential for conflicts increases as the number of tweaks does.