To customize the icons in the Action Center, you have two options on the Windows 10 PC. First, you can use the context menu option called Show app icons. Secondly, you can use the Registry Editor to show or hide the app icons in the Action Center. For that, navigate to this path: HKEY_CURRENT_USER SOFTWARE Microsoft Windows CurrentVersion Notifications Settings and create a REG_DWORD value named NOC_GLOBAL_SETTING_GLEAM_ENABLED.