Open up MS Edge
Click on the 3 “dots” in the top right to expand the menu
Scroll down and click on Settings
Click on (1) Privacy, search and services. Scroll down to you see (2),(3) “Clear browsing data”
Click on Choose what to clear (you’ll do on both (4) and (5) )
You will want to alter the “Time range” to All time and then check the following; at minimum (Browsing history; Cookies and other site data; cached images and files)
For the Internet Explorer one, you do the same; albeit different GUI
