the only viable alternative would be to build septic tank
Me realizing I’m ahead of the game because I live in a home with a septic tank. But when you have to pump that tank every 5 years, if you can’t do that yourself, it’s going to be a lot less anonymous than a centralized sewer.





Rollback is only possible after an upgrade from 10 to 11 but before the Windows.old directory (a snapshot of system files and configurations immediately before the upgrade) is purged. After that, a fresh install is the only option. No tool can claim to reliably downgrade Windows since 10 would not know how to handle newly-introduced configurations and data from 11, especially in the registry.