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What’s VS10SP1-KB2548139-x86.exe (Hotfix for Microsoft Visual Studio 2010 (KB2548139))? Is it safe or a virus?

The file "VS10SP1-KB2548139-x86.exe" is a hotfix provided by Microsoft for addressing a specific issue in Microsoft Visual Studio 2010 Service Pack 1 (SP1). This hotfix resolves a problem where certain features or functionalities in Visual Studio 2010 may not work as expected, improving the stability and reliability of the software. Hotfixes are intended to address user-reported bugs or vulnerabilities without waiting for a broader update. By applying this update, developers using Visual Studio 2010 can ensure smoother operation and avoid potential disruptions caused by the specific issue outlined in Knowledge Base article KB2548139.

Researched by Carl @ SpyShelter Labs

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Who makes VS10SP1-KB2548139-x86.exe (Hotfix for Microsoft Visual Studio 2010 (KB2548139))?

We’ve found Microsoft Corporation should be the publisher of VS10SP1-KB2548139-x86.exe.

How do we know? Our SpyShelter cybersecurity labs focuses on monitoring different types of Windows PC executables and their behaviors for our popular SpyShelter Antispyware software. Learn more about us, and how our cybersecurity team studies Windows PC executables/processes.

What does it mean if someone is the publisher of a PC .exe (executable or process)?

The publisher of an executable is the entity responsible for its distribution and authenticity. Most processes/executables on your PC should be signed. The signature on the executable should have been verified through a third party whose job it is to make sure the entity is who it says it is. Find an unsigned executable? You should consider scanning any completely unsigned .exe on your PC.

Last updated: October 11, 2025

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