Too windy to fly, so I just pottered around the house again. I got to go through the "backing out of the upgrade" process again on my home theatre PC, as the Windows 10 Creator's Edition breaks the hacked version of Windows Media Centre that I'm running. Again. I went through and did everything I can find to stop it upgrading again.
We did get to spend some time on the bracing of the tree in the front garden, as the wind had bent and broken the hollow metal support tubes that were already out there.