The first message is called "protected mode"
One of the newest features in Office 2010 is the new “Protected View” which protects your operating system from those unsafe documents downloaded from the Internet or suspicious Outlook email attachments which fail validation. If any of these documents are detected by Office 2010, the system will open them in a “Read-Only” way, thus diminishing the risk to be infected by malware or viruses.f I, for any reason, you do not like such a feature, here is a simple tutorial to disable it in a couple of steps.
Open Word or Excel in Office 2010.
Click the Office button. Go to File Menu, Office Backstage, and click Options.
In the left pane, Click Trust Center.
Now, on the right pane, click the Trust Center Settings button.
At this point you should be in the Trust Center dialog window.
In the left pane, click Protected View.
Untick the following options:
Enable Protected View for files that fail validation
Enable Protected View for files originating from the Internet
Enable Protected View for files located in potentially unsafe locations
Enable Protected View for Outlook attachments
Right click on the word document and select properties, hit the "unblock" button
You can also try a repair of Office