If the tool fails repeatedly, the most pragmatic solution is to abandon the preparation tool entirely: uninstall Visual Studio 2012, reboot, perform a clean install from the VS2012.5.iso (which includes all updates slipstreamed), and import your settings. That approach bypasses the need for the preparation tool altogether—but that’s a story for another article.
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: Establishes the baseline required to apply later security updates for remote code execution vulnerabilities. Preparation Checklist Before running preparation.exe , it is recommended to: Visual Studio 2012 Update 5 - Microsoft Support visual studio 2012 update 5 preparation.exe
: Resolves a bug where branching operations would fail until the IDE was restarted. If the tool fails repeatedly, the most pragmatic
It added the capability for Visual Studio 2012 to update local workspaces automatically after a project was renamed in Team Foundation Server 2015 or Visual Studio Online. Preparation Checklist Before running preparation