Someone might have hijacked your account and added it. If you still have access to one of the options, try using it to reset your password. Once you’re back in your account, check all your account details, delete any information you don't recognize, and walk through the Security Checkup to help secure your account and computer.
These steps won't provide a full reset. For example, some settings like fonts or accessibility won't be deleted. To create a new user profile, add a new user in Chrome. What changes when you restore your settings On your Chrome profile, the following settings will change to the default on all devices where you're signed in: Default search engine: In some countries, Google Search is Chrome's ...