Here is how to clear Microsoft Edge cache manually:

1. Open Microsoft Edge.

2. Click the 3-dot menu (Settings and more) and then select Settings.

3. Select Privacy, search, and services from the left menu.

4. Scroll down to find the Clear browsing data section and then click the Choose what to clear button to continue.

5. On the pop-up interface, select the time range based on your situation.

6. Make sure that the Cached images and files option is selected. You can also select other options according to your requirements. For example, if you want to clear cookies in Edge, you also need to select Cookies and other site data.

7. Click the Clear now button to clear cache in Edge.