1. On your computer, open Chrome.
2. On your browser toolbar, click More 
More Tools
Clear Browsing Data.
3. In the "Clear browsing data" box, click the check-boxes for Cookies and other site data and Cached images and files.
4. Use the menu at the top to select the amount of data that you want to delete. Choose beginning of time to delete everything.
Click 'Clear browsing data.'