The "Creators" update went smoothly for me. It took a long time. It's always nerve-wracking but there seem to be no problems other than file associations had been reset (easy but annoying to fix). Control Panel has been removed from the Start button (a shock) but you can type "Control Panel" into run and locate it then add it to your start menu - it's still there. You can unpin the mail link they add to your taskbar. Gaming Mode was ON by default after the upgrade so I would recommend checking that first and disabling it. I had removed my sound card and am using a Focusrite USB interface so that had to be reset as the default sound. All in all not bad but it was a mildly tense afternoon of waiting and reconfiguration.

Boy am I glad I didn't upgrade to 10.

I just realized that "Creators" update also re-enabled Windows Sounds so I had to shut those off. Also when I powered up my USB MIDI keyboard I received the message that it was installing "additional configuration". I have no idea what that means. Everything works okay (so far), however.

A couple of clients lost their printers again this past month. Happened in January as well.
 
And the updates this past month reset some privacy settings, added new ones, changed MS feedback/telemetry, and other such auto stuff. Including changing the store to auto download updates for store crap. Annoying.
 
 

What do you mean it's not a game? It sure played a game with me this weekend.  
I was upstairs connected to the daw over RDP. I am running the initial release of Win10 as I like it to just work without the "Getting Windows Ready..." - when it was ready yesterday.
 
Rant aside, I have had some weird issues with windows 10 that I could only hope were caused by me running a DOT 0 version. So via remote RDP, I downloaded the Windows 10 1511 update to bump me just a little from the dot 0 version to see if the crazy things I was seeing would clear up. Upon installing 1511 offline installer, I was alerted to the fact that it would not proceed without Windows Corrupdates on. So I turned them on to satisfy? the 1511 offline installer. It went about it business installing 1511 and wanted to reboot. It did and everything seemed pretty groovy. So I stopped and disabled the Windows Update Service and restarted it. When it came back up it was "Configuring Updates don't you dare turn it off" >:(
 
What? Well guess what. when I was installing 1511 with the internet connected because I was watching baseball and RDPed into the DAW, Creators update was pushed to me. So whn the daw came back I went from 1511 -> creator update. I thought, Oh well onward and upward.
 
I launched Sonar , Did the "This is not a game business," but all the audio stuff was wrong. I fixed all that then Sonar audio engine would not start no matter what as if I had no timing master, so I deleted aud.ini for Splat and retried it. Everything was reset again so I did a "Go back to the previous build" Which seemed to put me back to the dot 0 version (but it could have been 1511). Anyway then Sonar won't start at all. When I click it I got a windows wait cursor for a second then nothing. If seen a lot of failure modes with Sonar thought the years but not that one. I googled it and did all the gratuitous stuff the the Cakewalk Knowledge base has to offer, though about calling like the profile folder redo and all that. Uninstalling Splat and reinstalling it fixed it not. I thought about calling Cakewalk for about a picosecond then so you know what I did?
 
Restored the whole C: drive from an Acronis image file I created Friday before all this this game ensued. 
 
Life is back to normal but I am afraid to update Windows 10 more than ever!
I hope I never have to.
 

Got the message I need to reboot to finish the Creators update.  Somehow my Metered Connection got turned off. Turned it back on BUT... Is It Too Late To Prevent the update? If not, how do I roll back once it's done?

That method of avoiding updates is and always was only temporary, a bit like turning off Windows Defender from within Windows, it will come back on, only after a longer period, and unless you are continually looking, it will sneak up on you and . . . well you know first hand . There are few methods of disabling updates with the same result, just differing time frames, I find the easiest is just disabling the Windows Update service, the only way it will update then is if you so choose and re enable it purposely. I have found no issues staying well behind the pack, until not long ago I remained on 1511 without issue, now I'm on 1607 and will remain there indefinitely. Everything is rock solid.