File extension MSU (.MSU) information

Windows cannot open MSU files?

If Windows is unable to open file extension .MSU you may have registry related errors or may not have the appropriate program installed. We strongly recommend that you run a free registry scan.

Appropriate program:

The .MSU file extension identifies Microsoft Update Standalone Packages (also known as Windows Vista hot fix Updates). These are usually compressed files which deliver updates or patches for Windows Vista. To extract these files you will need to use the windows Vista Expand utility.. Incorrect associations are the cause of many file extension errors. Scan your system to prevent, identify and repair MSU file extension association errors.


  • Performance: To optimize memory and CPU usage for MSU files run a free performance scan.
  • Stability: Fix MSU errors to make your system and applications more stable.
  • Drivers: Scan your PC for the outdated drivers which lead to system errors and slowdowns.

You are currently viewing the detail page for ABF file extension. This page contains a detailed description of the ABF file type, software tools to help resolve file association errors in the Windows registry together with relevant system utility applications and other related information.