Lifesaver! Have been trying to get Windows Update to work since mid May and this is the only thing of dozens of suggestions that actually worked.
A bit tricky to use at the end though. First of all do not try to update directly using the USB or DVD. Pay attention to the last section of the instructions and install through Explorer. Then watch out for the questions (especially the one about "upgrade-Y/N)" do not do any of this either. The result, if you do not follow the instructions closely (and if you answer any of the questions 'wrong'), is you will get a new install of Win10 without your settings, programs, and apps! (and get to start over)