Windows Update Errors With Some Dell Referbished PCs

I recently purchased a referbed Dell XPS 15 and from day one Windows Update would fail. In my case the cause was a combination of Dell setting a registry key to override the update and status server address to an internal Dell IP and apparently not having the correct Windows Firewall rules in place.

I removed the registry key and ran the FixIt app here. http://support.microsoft.com/mats/windows_update/

Note that some folks online are saying you can simply change the value UseWUServer to 0 to accomplish the same thing.

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate]
"WUServer"="http://172.23.49.241"
"WUStatusServer"="http://172.23.49.241"

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\WindowsUpdate\AU]
"UseWUServer"=dword:00000001

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