Keep Windows 10 from Updating to Windows 11 (5 Ways) Method 3 is the instructions I used to make it not pester me but continue to get updates (ignore the backup software shilling, although it is true that if you already have software that can take a complete image of your hard drive like a snapshot, that can roll it back)

I set it to 22H2 instead of 21H2 because iirc that's the latest version of Win10

It's worked so far; I've been able to get updates that are Not That One since I added this, and Windows hasn't forcibly removed it from the registry.