This post explains how to enable or disable the download prompt in in Microsoft Edge in Windows 10. When you have downloaded a file, Edge shows a pop-up dialog at the bottom of the window. You turn it off using Edge's settings. Or, you can change a value in the Registry.
Windows 10 includes a new Mail app which is simplistic and allows you to send and receive e-mail from multiple accounts. It allows adding multiple email accounts so you can view and manage all your email accounts using the single app. This post explains how to remove an email account from the Mail app in Windows 10.