This article describes an issue that could cause data loss in Microsoft Visual Studio Team Foundation Server 2012 Update 4. An update is available to resolve this issue. The update can be applied only to Visual Studio Team Foundation Server 2012 Update 4. Previous releases of Visual Studio Team Foundation Server 2012 should be upgraded to Update 4 before this update is applied.
If you cannot install this update from Microsoft Update, you should contact Microsoft Customer Support Services to obtain the update. For a complete list of Microsoft Customer Support Services telephone numbers and information about support costs, go to the following Microsoft website:
Note In special cases, charges that are ordinarily incurred for support calls may be canceled if a Microsoft Support Professional determines that a specific update will resolve your problem. The usual support costs will apply to additional support questions and issues that do not qualify for the specific update in question.
You may have to restart the computer after you install the hotfix if the affected files are not being used at the time of installation.
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the "Applies to" section.