Try a few prior discussions before you call Microsoft on this. The thing I'm seeing is it's not one thing and then with the W10 free upgrade ending soon I think the servers are just overloaded.
Sony Vaio Laptop running Windows 7. Last Windows update was May 29, 2016. Unable to get any update uploaded since then. Troubleshooter will not start Error Code 0x80070002. I did a system restore to prior to the last successful Windows update thinking it might be the culprit. No such luck. Just tried loading a couple of the many updates available and it goes into an endless "loading update......" without anything happening for hours.