.MSU File Extension

File Type:
Windows Vista Update Package

Having trouble opening .msu extension? Don't panic! This page explains what msu files are as well as suggests programs you may use to open msu files. You can download these programs through this page.

What is a MSU file?

Msu file extension has Windows Vista Update Package file type, developed by Microsoft, which is associated with the "misc files" category.

Typically used by Windows Update, the file provides updates for various files and applications. MSU files don’t require manual installation and are used by Windows Update automatically.

To learn how you can open the given file, read the information below.

msu file icon
File Type:
Windows Vista Update Package
Misc Files

How to open MSU file?

Double click the msu file to open it. The file will open automatically if file associations have been correctly installed and there is a proper program on your computer; if not, file associations may be corrupted and your OS either cannot find the proper program, or you might not have one for opening the file. First, we recommend downloading our utility to fix file association errors; then, you can download any program for opening the .msu extension from the ones suggested below. If you are certain there is nothing wrong with the file associations, you may proceed to method 2 right away; besides, if you can't make up your mind when choosing the right program, use Universal File Viewer from the last method.

Method 1: Fix file association errors

Follow these steps in order to automatically fix the msu extension associations' problem in no time:

  • Step 1: Click on "Download Solution" to download automatic tool provided by WikiExt.
  • Step 2: Click "Start Scan" to identify all potential issues.
  • Step 3: Review scan results and click "Fix Items".

File Size: 3.04 MB, Download time: < 1 min. on DSL/ADSL/Cable

This Tool is Compatible With: Windows XP, Vista, 7, 8/8.1, 10

Method 2: Download the appropriate software

The given list provides programs which may be used for opening or converting the msu file. Choose the proper program for your OS, and click it to start the download or proceed to the developer's website.

Programs that open MSU files

  • Windows Windows
    • Microsoft Windows Update Microsoft Windows Update

Method 3: Use universal file viewer

In addition to the list of programs above, we recommend using Universal File Viewer. This tool can open over 250 file extensions and, most likely, it will be able to open the msu file as well. Download Universal File Viewer for your OS.

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