MS Office 2010 Update KB3055034, KB3054886 Causes Authentication Error When Opening Office Files From Web Folders
In October 2015 Microsoft released MS Office 2010 update KB3055034 causing authentication to fail when opening Office files such as Word or Excel from a Web Folder. MS Office may also crash. The update affects all Windows versions running MS Office 2010 Service Pack 2 (SP2).
It’s a Microsoft issue affecting many services and to resolve the problem temporarily while awaiting a fix from Microsoft, rollback (uninstall) the update.
To uninstall the MS Office KB3055034 update:
- Open Control Panel > Programs > Programs and Features
- Select View Installed Updates
- Search for KB3055034
- Right-click ALL occurrences of Update for Microsoft Office 2010 (KB3055034)
- Select Uninstall
- Restart Windows
In some cases it is also required to uninstall MS Office KB3054886 using the same procedure.