How To Install Slack via Microsoft Installer (MSIX) – 64-bit

Purpose

This guide explains how to install Slack (64-bit) on a Windows machine using the MSIX installer via PowerShell.

It is suitable for manual installations or system-wide deployments.

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Prerequisites

• Windows environment

• Administrator permissions

• Slack 64-bit MSIX installer downloaded

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1. Download Slack MSIX (64-bit)

Step 1: Access the Official Download Page

Go to the official Slack documentation:

🔗 Install Slack via Microsoft Installer (MSI)

Step 2: Save the Installer

• Download the .msix installer

• Save it to a known location, e.g., Downloads or Desktop

  

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2. Install Slack Using PowerShell

Step 1: Open PowerShell as Administrator

• Right-click PowerShell

• Select Run as Administrator

Step 2: Run the Installation Command

Replace the path below with the actual location of your .msix file:

Add-AppxProvisionedPackage -Online -PackagePath "C:\path\to\Slack.msix" -SkipLicense -Regions "all"

Example

If the .msix file is on the Desktop:

Add-AppxProvisionedPackage -Online -PackagePath "C:\Users\Administrator\Desktop\Slack.msix" -SkipLicense -Regions "all"

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3. Verification

• Open the Start Menu

• Confirm that Slack appears and is available for all users on the machine

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Expected Result

• Slack (64-bit) is installed successfully

• The app is accessible to all users on the system

• Users can open Slack without further setup