Portmaster silent install and uninstall

Portmaster is a free and open-source application that puts you back in charge over all your computers network connections.

EXE x64 Updated 19 Oct 2026
Vendor
Safing ICS Technologies GmbH
Category
Security
Installer
NSIS (Nullsoft)
Architecture
x64
Checked version
2.2.3
winget ID
Safing.Portmaster
License
GPL-3.0
Download
Official download

Silent install

Portmaster_2.2.3_x64-setup.exe /S
  1. Download the installer from the direct download link.
  2. Open an elevated Command Prompt: right-click Command Prompt and select Run as administrator.
  3. Change to the folder with the installer, for example cd C:\Temp.
  4. Run the command above. Adjust the file name if you downloaded a different version.

Or install with winget

winget install --id Safing.Portmaster --exact --silent --scope machine --accept-package-agreements --accept-source-agreements

Silent uninstall

winget
winget uninstall --id Safing.Portmaster --exact --silent --accept-source-agreements

Run the command from an elevated Command Prompt.

About the NSIS (Nullsoft) installer

NSIS installers use /S for a silent install. Switches are case-sensitive, and /D= must come last without quotes.

SwitchWhat it does
/SSilent install (capital S).
/D=C:\PathInstall folder. Must be the last switch, no quotes.
/allusersPer-machine install, supported by many but not all NSIS setups.

Deploy Portmaster with Microsoft Intune

Package the installer as a Win32 app (.intunewin) and use these settings:

Install commandPortmaster_2.2.3_x64-setup.exe /S
Uninstall command Use the uninstaller from the install folder; winget is not available to the SYSTEM account by default.
Install behaviorSystem

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