To change the default search engine: Launch Chrome. Click the three-dot menu on the top right. Click Settings. Select Search Engine. Select the engine of your choice from the list of search engines in the drop-down menu. If the browser search engine keeps resetting back to Bing despite that, you'll need to remove the adware or malware responsible.

To remove the automatic Bing search on Chrome, click the three vertical dots at the top right corner and click Settings. Click Search settings in the left-hand menu. Change the option to Google in the Search engine used in the address bar section.

Open Chrome Settings -> On Startup, check if "Open a specific page or set of pages" is enabled and bing is listed. If yes, removed it. Restart chrome and verify if the issue is solved.

To stop Google Chrome from changing your search engine to Bing.com, we highly recommend using an antivirus solution. In addition, you will also need to alter your browser settings, to fully remove Microsoft Bing redirects.