This update is no longer available. To fix the issues that are described in this article, install the latest Microsoft Office update from the following Microsoft Learn article:
Latest updates for versions of Office that use Windows Installer (MSI)
Microsoft has released an update for Microsoft Office 2010. This update provides the latest fix for the 32-bit and 64-bit editions of Office 2010. Additionally, this update contains stability and performance improvements.
Issue that this update fixes
Assume that you open a document that contains some macros in Microsoft Word 2010. Then, the Trust Bar flickers and disappears. In this situation, you cannot enable the macros in the document by using the Trust Bar.