Microsoft Windows Installer.

      MSIEXEC /Option RequiredParameter [OptionalParameter]

Install Options:

   Install or configure a product:
      MSIEXEC /package Product.msi
      MSIEXEC /i Product.msi

   Administrative install, Install a product on the network:
      MSIEXEC /a Product.msi

   Advertise a product to all users:
      MSIEXEC /j m Product.msi [/t TransformList] [/g LanguageID]

   Advertise a product to current user:
      MSIEXEC /j u Product.msi [/t TransformList] [/g LanguageID]

   Uninstall the product:
      MSIEXEC /uninstall Product.msi
      MSIEXEC /x Product.msi
      MSIEXEC /uninstall ProductCode
      MSIEXEC /x ProductCode

Extract files from an MSI:
      MSIEXEC /a MSIFile /qb TARGETDIR=DestinationDirectory

Display Options:

   Quiet mode, no user interaction

   Unattended mode - progress bar only

   Set user interface level: None

   Set user interface level: Basic UI

   Set user interface level: Reduced UI

   Set user interface level: Full UI (default)

   Help information
Restart Options:

   Do not restart after the installation is complete:

   Prompt the user for restart if necessary:

   Always restart the computer after installation:
Logging Options:

   /le Logfile  Log All error messages
   /lw Logfile  Log Non-fatal warnings
   /li Logfile  Log Status messages
   /la Logfile  Log Start up of actions
   /lr Logfile  Log Action-specific records
   /lu Logfile  Log User requests
   /lc Logfile  Log Initial (UI) parameters
   /lm Logfile  Log Out-of-memory or fatal exit information
   /lo Logfile  Log Out-of-disk-space messages
   /lp Logfile  Log Terminal properties
   /lv Logfile  Log Verbose output
   /lx Logfile  Log Extra debugging information

   /l* Logfile  Log all information, except for v and x options
   /log Logfile Equivalent of /l* LogFile

   /l+ Logfile  Append to an existing log file.
   /l! Logfile  Flush each line to the log.

Update Options:

   Apply update(s)
      /update Update1.msp[;Update2.msp]

   Remove update(s) for a product:
      /uninstall PatchCodeGuid[;Update2.msp] /package Product.msi | ProductCode
Repair Options:

   /fp          Repair/fix - replace missing files
   /fo          Repair/fix - replace Older files(default)
   /fe          Repair/fix - replace older or Equal date files
   /fd          Repair/fix - replace Different version files
   /fc          Repair/fix - replace files based on Checksum differences
   /fa          Repair/fix - replace All files
   /fu          Repair/fix - rewrite HKCU registry(default)
   /fm          Repair/fix - rewrite HKLM registry(default)
   /fs          Repair/fix - recreate shortcuts(default)
   /fv          Repair/fix - rewrite local cache from source

Set Public Properties

All Command-line options are case insensitive. Windows installer (and msiexec) have been updated with each major release of Windows, Installer redistributables are available at the Microsoft Download Center.

Msiexec sets an error level on return that corresponds to System Error Codes.

Do not use the domain controller SYSVOL folder as a Windows Installer installation point, doing so can result in the following error when you attempt to run the Windows Installer (.msi) package:

This installation package could not be opened. Verify that the package exists and that you can access it, or contact the application vendor to verify that this is a valid Windows Installer package.

This is because the SYSVOL folder is created with the SHI1005_FLAGS_RESTRICT_EXCLUSIVE_OPENS attribute, which prevents it from being exclusively locked by Windows Installer. Having locked files on a SYSVOL will create Active Directory directory service synchronization problems.

Registry Keys:

x64 bit installer, per-machine install:

x64 bit installer, per-user install:

x86 bit installer, per-machine install:

x86 bit installer, per-user install:
HKCU\SOFTWARE\ WOW6432Node\Microsoft\Windows\CurrentVersion\Uninstall

To query these in PowerShell, more here:

$Apps = @()
$Apps += Get-ItemProperty "HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Uninstall\*" |
Select-Object DisplayName, DisplayVersion, Publisher, InstallDate

$Apps += Get-ItemProperty "HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\*" |
Select-Object DisplayName, DisplayVersion, Publisher, InstallDate



Install an application from a .MSI file:
msiexec /i "C:\Install\ss64app.msi"

UnInstall a program, using its GUID:
msiexec /uninstall "{5AFF6499-63BA-4A36-83B2-8D256404AC3D}" /log "C:\install\ss64app.txt"

or remotely with psexec
psexec \\$workstation -s msiexec /uninstall "{5AFF6499-63BA-4A36-83B2-8D256404AC3D}" /log "C:\install\ss64app.txt"

Extract the files from a .MSI installer:

msiexec /a proginstall.msi /qb TARGETDIR=C:\demo\extractedprog

“People don’t resist change. They resist being changed!” - Peter Senge.

Related commands

CHANGE - Terminal Server session install mode.
MSIinfo - Edit or display the summary information stream of an MSI database. (Windows Installer SDK).
ORCA - A database table editor for creating and editing Windows Installer packages and merge modules. (Windows Installer SDK).
REGSVR32 - Register or unregister a DLL.
RunDll32 - Uninstall DLL's e.g. MS Java.
WINGET - Windows Package Manager. - Released Versions of Windows Installer.
Q310747 - System File Checker (Sfc.exe)
Q974524 - Win32_Product will perform a repair of all installed applications.
PowerShell: Get-Package -Name SomeProduct
Equivalent bash command (Linux): RPM - Rpm Package Manager.

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