Solution

  1. Verify that your internet connection is active by visiting the ESET home page. You must have an active internet connection before you can download updates.

  2. Open the main program window of your ESET Windows product.

  3. Press the F5 key to access Advanced setup.

  4. Click Update, expand Basic, click Clear and then click OK.

Why is Clear update cache greyed out?

If Clear is greyed out (or otherwise unavailable), restart your computer and then attempt to update again. After your computer has restarted, repeat steps 2-4. Clear should now be active.