The problem with windows is it's one time it's installing ads that you have to disable for apps, a different time it's installing ads by re-enabling Cortana and forcing local searches over the web, a different time it's adding ads by installing a bullshit weather app, a different time it's adding ads with a bullshit news app, a different time it's reverting all your settings limiting spyware telemetry, a different time...

It's not one thing repeatedly. But it's constantly whack a mole to figure out how to disable the newest hostile anti-feature it installed without your consent.