First, you’ll want to review the settings for Protected View. Open Word, Excel, or PowerPoint. Go to File and then Options. From the Options window, click the entry for Trust Center.

After that, make sure that the Open selected file types in Protected View option is selected.If so, tick all the Open checkboxes that are related to the old version of Excel. For example, you need ...

Select the Open in Protected View option. Click the OK button. Do the same with PowerPoint 97-2003 presentations, shows, templates, and add-in files setting as well.

Microsoft Office 2010 knows there are Word-based macro viruses out there. It's so protective, in fact, it can be a bit annoying when you're trying to open Outlook attachments from co-workers. Tech ...

But if your documents always come from reliable sources and you're running reliable antivirus software, you may prefer to turn off Protected View and save that extra step. Here's how: Step 1 ...