Microsoft Edge - Internet Cache Skipped, Microsoft Edge - Internet History Skipped, Microsoft Edge - Cookies Skipped, and Microsoft Edge - Download History Skipped. How to avoid these messages?
Browsers must be fully exited before cleaning. This includes any programs which use the rendering engine of the browser. There is a wide variety of applications (and windows apps) that keep edge and explorer items locked, including but not limited to mircosoft office, windows store apps and secunia PSI
Also edge cleaning Edge is slightly broken if you've taken the Anniversary update. Yhe developers are working on a solution.
After the the Anniversary update it cleans nothing,no cookies showing up to keep..ie and firefox tested.