Because malware occasionally disguises itself using legitimate system file names, it is important to verify that your copy of preparation.exe is authentic.
If you are encountering errors—such as "preparation.exe has stopped working" or installer freezes—follow these steps: 1. Run as Administrator The most common cause of failure is lack of permissions. Right-click preparation.exe . Select . 2. Disable Antivirus Temporarily
Microsoft's official guidance for update-related issues recommends a two-step approach:
Aggressive real-time antivirus scanning can conflict with preparation.exe as it rapidly opens thousands of system files. Temporarily disable your third-party antivirus software.
If you originally downloaded VS2012 via a web installer, the cached packages in C:\ProgramData\Microsoft\VisualStudio\Packages often become corrupted. preparation.exe will hang when it cannot verify the hash of an existing package.
: Confirming that the required .NET Framework versions and system libraries are active. Microsoft Support Key Features of Update 5
: A bug was fixed where branching from an existing branch could fail if the user switched team projects or servers without restarting Visual Studio. After Update 5, branch operations complete correctly without requiring a restart.
(or the "preparation" phase of the installer) often became a point of frustration for developers because it arrived just as the industry was shifting toward newer versions of .NET and Windows. 🛠️ The Purpose of Preparation.exe
Runtime components required for applications developed with VS 2012. Important Maintenance Notes Support ends for older versions of Visual Studio