Is it trying to download the install files? That requiring a login makes sense.

Kahn Academy is neat. And free. I discovered it back when Brilliant was being shilled everywhere online years ago.

Those keys are usually gotten via stolen credit cards. It’s much more ethical to just pirate the thing.

Running scripts from a random comment is risky if you don’t know how to check if the script is safe (and someone asking how to activate windows definitely doesn’t). Better to just link the massgravel Microsoft Activation Scripts (MAS), as the top comment did.

dealing with ads

Just use an adblocker. It’s basic internet safety at this point. I recommend ublock origin. If you’re on mobile, android’s version of firefox can use it as well.