This answer is directly from the Ask.com website and I am not claiming to have written it:
- In an open Chrome browser, click on the Wrench In the top right-hand corner of the browser window.
- Hover over Tools In the menu that appears and click on Extensions.
- Locate the Ask extension and click the Remove button next to it.
- Click Uninstall In the box that appears.
- Close and re-open your browser.
The link to the site is: