When one of my clients receives emails into Windows Live Mail that have Word file attachments they cannot be opened directly - error message = "Word experienced an error trying to open the file - try these suggestions:- * Check the file permissions for the document or drive, * Make sure that there is sufficient free memory or disk space, * Open the file with the Text Recovery Converter. When the attachment is saved and then try to open it also fails until I select Properties, and Unblock. This even happens if I create a MS Word 2010 file on the same PC and send it to self. I have checked Compatibility settings - none set, nor is Run as Administrator. I have checked file permissions for the User are normal on C:\Users\Username folders. I have also checked the Trust Centre settings in Word 2010, especially File Block Settings and Macro settings, relaxing them to not block anything.
This is clearly intended to prevent "foreign" PC files from being accessed but my client is the only user on this PC and didn't have this problem when using MS Word 2003. Where do I go from here?