Files with msu file extension can be most often found as installation packages for Windows Update. Opening these files will result in opening of Windows Update service and installation of its content.

There is one other file type using
the MSU file extension!

empty icon.msu - Blaise data

Detailed description

Software that open msu file

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MSU file extension - Microsoft Update Standalone Package

What is msu file? How to open msu files?

File type specification:

Archive and compressed file type icon Archive and compressed file type

msu file icon: msu filetype icon

msu file extension is mainly used for files that contain Microsoft Update Standalone Package.

These files are typically used in Windows Vista and later to install updates and hotfixes through Windows Update service.

MSU archive contains:

  • Windows update metadata
  • CAB file with update data
  • XML file including MSU content
  • properties data for Windows Update

Updated: April 14, 2024

The default software associated to open msu file:

Microsoft Windows icon

Microsoft Corporation logoMicrosoft Windows  Microsoft Windows software

Company or developer:
Microsoft Corporation

A family of operating systems developed by the Microsoft Corp. The first Windows was released in 1985 as a GUI add-on to MS-DOS. MS-DOS based Windows versions were developed to 2000, when was released the last version called Windows ME. Windows based on NT core started in 1993. Windows NT family are developed to these days, the latest version is called Microsoft Windows 11.

Help how to open:

If you double click (open) on *.msu file, the installer will automatically start the update. Also you can use expand and pkgmgr commands in the command prompt.

How to convert:

There is no reason to convert .msu files to other formats and it is not even possible.

List of software applications associated to the .msu file extension

Recommended software programs are sorted by OS platform (Windows, macOS, Linux, iOS, Android etc.)
and possible program actions that can be done with the file: like open msu file, edit msu file, convert msu file, view msu file, play msu file etc. (if exist software for corresponding action in's database).

Click on the tab below to simply browse between the application actions, to quickly get a list of recommended software, which is able to perform the specified software action, such as opening, editing or converting msu files.

Software that open msu file - Microsoft Update Standalone Package

Programs supporting the exension msu on the main platforms Windows, Mac, Linux or mobile. Click on the link to get more information about listed programs for open msu file action.

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