To clear cache and cookies on your Microsoft Edge browser, please follow the steps below:

1. Open Microsoft Edge.
2. Select Menu by clicking on the 3 dots icon on top right corner of the browser window.
3. Go to Settings > Privacy, search and services.
4. Under Clear Browsing Data, click on 'Choose what to clear'.
5. From there, select the Time Range from the list.
6. Then click on 'Clear Now'. 

All your cookies and other site data will be deleted for the time range you selected. Please be advised, this action will sign you out of most sites and you will need to re-enter your details.