Was it the version 1511 update? (Build 10586) Run winver to confirm.
Yes! it seems to be.
This main Win10 Comp is only on version 10.0 (build 10240).
Is the update 1511 being rolled out?
Edit:
The update for me didnt show up in the windows update screen (windows update these days is a load of &*$^*%
).
I ended up having to use that media creation tool. I re-downloaded it, but not sure if you can use the same one some used to get win10 upgraded in the first place. I selected Upgrade and to keep all by stuff, and after 2 hours I'm now updated to the new version. phew!
The amount of faults with these windows upgrades that happen, enough for it to be mentioned regularly in the computering media, I don't think bodes well for microsoft. I don't really know why they changed the old update system. I can't remember people complaining about that. It was much more manual and easier for the customers to sort their problems out themselves.
These days its all flash and no substance. Rant over!