How to Deploy Slack via Intune (Win32 App Packaging Guide)

Download the machine-wide MSI

Slack's machine-wide installer is available directly from Slack:

https://slack.com/intl/en-gb/downloads/windows

On the downloads page, look for Download for Windows (64-bit) and check for a separate MSI download link. Alternatively, the direct URL for the machine-wide MSI is:

https://slack.com/ssb/download-win64-msi

Wrap with the Content Prep Tool

IntuneWinAppUtil.exe -c "C:\AppSource\Slack" -s "slack-standalone-x64.msi" -o "C:\IntunePackages"

Add the app in Intune

1. Upload the .intunewin file
2. Name: Slack
3. Publisher: Slack Technologies, Inc.

Install and uninstall commands

Detection rule

Known gotchas

Existing per-user installs conflict with the machine-wide MSI

If users already have Slack installed via the per-user EXE installer (in AppData), the machine-wide MSI will not remove it. Both versions can coexist, which causes confusion. Deploy a PowerShell script before the Slack MSI to remove any per-user installs:

# Remove per-user Slack installations before deploying machine-wide MSI
$slackUserPaths = @(
    "$env:LOCALAPPDATA\slack",
    "$env:APPDATA\Local\slack"
)
foreach ($path in $slackUserPaths) {
    if (Test-Path $path) {
        $uninstaller = Get-ChildItem "$path\app-*\unins000.exe" -ErrorAction SilentlyContinue | Select-Object -Last 1
        if ($uninstaller) {
            Start-Process $uninstaller.FullName -ArgumentList "--uninstall" -Wait -ErrorAction SilentlyContinue
        }
    }
}

Slack updating to a per-user install after machine-wide deploy

Slack can self-update and in some cases this reinstalls a per-user version alongside the machine-wide one. The cleanest solution is to set Slack to update via your Intune supersedence chain and disable the in-app auto-update if your Slack plan allows it.

Frequently Asked Questions