Windows 10 Upgrade

I upgraded my photo support PCs to Windows 10 over the last two days.  The upgrades went well.  On my laptop with not much on it, the upgrade was fast and no issues.  To be fair, I had done a re-image of the factory delivery only a few weeks ago.  So it was as clean as could be.  On my primary PC, there were a few issues.  Most I could work through.  One caused me to call MS support and that was a waste of time.  It had to do with home groups not working - and their solution was to load Windows 10 on a third laptop in the group.  Eventually found the solution - and it wasn't that difficult and all are working as expected.