You may also experience this error if you are running either Word or Zotero as Administrator or in a compatibility mode in Windows Vista or 7, or if security software is interfering with Zotero's ability to communicate with Word. To do so, follow the steps under the “Workaround” heading on this page. This process does not require an additional license.
You can fix this problem by switching your copy of Office 2010 from a Click-to-Run installation to a standard (MSI-based) installation. Unfortunately, this virtual environment prohibits Zotero from communicating with these Word instances, producing an error. Microsoft distributes a set of “Click-to-Run” versions of Office 2010 that are configured to run within their own virtual environment. You may be experiencing an issue relating to your Word 2010 installation method.
“Zotero experienced an error updating your document. If you install Zotero with Word 2010 and receive an error stating