By the way, the tweaks you made to Windows will not be there anymore after the upgrade. You will have to tweak again.Thanks for explanation. Like @Lockdown said, SMB1 is not how the latest version of Windows will be delivered to you.
You have the option of downloading the ISO for the latest Windows version, and using that for your upgrade. I see you are on Windows 10. So you can mount the ISO, run the installer file in it, and by default it will upgrade you to the newest version of Windows, saving your apps and files. After it finishes the initial stage of checking out your system and downloading latest updates, and it actually starts to do the real upgrade process, you could pull the plug on your internet connection, until it's all finished. You don't have to, but if you are concerned about an open internet connection, you could do it.