Still can't set search engine - what am i missing?

If you change it and it keeps reverting, something is overriding you. Usual suspects: - a browser extension (often one you don't remember installing, like a "PDF converter" or new tab theme). disable them all and test - "managed by your organization" in the browser menu, meaning a work policy controls it. on a personal machine that can also be leftover adware - a second browser profile, you fixed one and you're using the other Chrome also has a reset settings option that clears hijacked search settings without touching bookmarks or passwords.