Microsoft's Protected View feature tries to protect you against potentially malicious files and documents. Here's how to use it.

File Block in Microsoft Office prevents outdated file types from opening and can cause your file to open in Protected View via Trust Center.

Find out how you can disable Protected View & remove Read-only in Microsoft Office programs like Excel, Word, PowerPoint, etc, via the Trust Center.

Microsoft Office 2010 includes a new "Protected View" that, by default, will open all Outlook attachments and documents downloaded from the Internet in "read-only" mode.