It looks like we have another bad nonsecurity patch.

As best I can tell, the patch—KB 3128031 for Office 2010—is still available on the Microsoft Catalog, but direct links on the KB page return a “This site can’t be reached” or a 404 “Sorry, this download is no longer available” page.

A few hours ago, an anonymous poster on the AskWoody Lounge raised the alarm:

One of my Excel 2010 workbooks failed to run Workbook_Open code after installing this months Office 2010 updates. After uninstalling and reinstalling individually, I traced the problem to:

Update for Microsoft Office 2010 KB3128031

Strangely, while that workbook failed, a new test workbook with a simple message called from Workbook_Open did run. Copying all sheets and code to a new workbook did not fix the problem.

Microsoft now seems to have pulled the update but my Windows 7 update still offered it tonight.

A quick scan of the usual Office support forums doesn’t turn up any additional information.