A family of Microsoft word processing software products for creating web, email, and print documents.
By default, Word forces Protected View for documents that originate from internet locations (for example). In the user interface, you can control this by using the options at File | Options | Trust Center | Trust Center Settings | Protected View. Some older file types will also trigger Protected View; see File | Options | Trust Center | Trust Center Settings | File Block Settings.
Read Mode is enabled by default for uneditable files, such as e-mail attachments. To prevent Word from going to Read Mode, clear the option to "Open e-mail attachments and other uneditable files in reading view" at File | Options | General.