I managed to get the Download button on Win10Pro using some of the registry changes I monitored from doing the steps in the OP on LTSB, out of curiosity I tried the reg tweaks on Home but did not get the Download button, also you HAVE TO LET Windows Update do its own scan do not do a manual scan of upddates for it to work. Also I don't know if these reg tweaks only need applied once or not as I use HKLM\SOFTWARE\Microsoft\Windows\CurrentVersion\Run to launch a bat file that re-imports some of my reg tweaks that MS resets during a reboot. I highlighted in bold what I believe is the real culprit for the Download button.
From what I read of the software you can disable wuauserv until you are ready to do updates, then you will need to temporarily re-enable wuauserv while using that tool to do your updates, then disable wuauserv again. The only benefit to that over the gpedit/reg tweak is no nagging that you have updates that need to be installed.
I tried the tool, seemed ok but after much to my surprise, ms had downloaded updates and installed ones I did not want so out the door went that little program lol
Then have you tried either the gpedit from OP or the reg key I posted but don't do a manual scan but let WU do the scan itself then use MS Win10 WU hide tool to hide the ones you don;t want before hitting the Download button?
nah I wanted a small program to update only the ones I wanted without update service being turned on, so didn't help me
Here is a link s1ave77 posted in another thread, atm it's the only other thing I know that might be able to do what you want: gallery.technet.microsoft.com/scriptcenter/2d191bcd-3308-4edd-9de2-88dff796b0bc
Surely someone will come out with a brilliant way, but I can say that if you upgrade from a Pro, the store and most of the Apps will be retained for the old Pro users.
I do not play those games but all the games i do play work great. Guild Wars Guild Wars 2 World of Warcraft Call of Duty: United Offensive Battlefield 4 Mirror's Edge Train Simulator 2015 Diablo 2 Elder Scrolls Online
Bye bye ===== Performing ===== = Microsoft Windows 10 Enterprise 2015 LTSB ======== Windows(R) Operating System, VOLUME_KMSCLIENT channel SKU ID: 7b51a46c-0c04-4e8f-9af4-8496cca90d5e Partial Product Key: 76DF9 KMS-host Machine: 127.0.0.2:1688 KMS-Server PID: Activation Interval: 0d 2h 0min Renewal Interval: 7d 0h 0min License Status: Notification ---------------------------------------------------- Windows running on this PC has not yet been properly activated. The Key Management Service (KMS) key used to activate Windows running on this PC has been blocked by Microsoft. To resolve, contact your system administrator for assistance.