Remove windows 10 upgrade assistant

Really annoying, windows 10 launches its upgrade assistant every few days as soon as it gets online. I kill it with task manager and uninstall it, and it goes back after a few days. How do i completely kill it, remove it, uninstall it? And no, i choose when or should i like to update windows at all, hate forced updates. I really havent any interest in creator upgrade, or any of those funny names they come up with. I use the now unsupported win10 summer 2015 build and wont update. I use windows for a few pc games that i play and like, and havent the slightest interest in any recent windows 10 updates. Any solutions, other than getting a mac, reverting to other windows, and such?

I mean the assistant that splashes as soon as it detects online. Ive tried deleting the win10upgrade folder, uninstalling with ctrl panel, it will reappear eventually. How do i rip it out?

Could i disable that update with regedit?

currentcontrolset has this right?