Lazarus silent install and uninstall

Lazarus is a Delphi compatible cross-platform IDE for Rapid Application Development. It has variety of components ready for use and a graphical form designer to easily create complex graphical user interfaces.

EXE x86x64 Updated 11 Nov 2026

Vendor: Lazarus Team
Category: Developer Tools
Installer: Inno Setup
Architecture: x86, x64
Checked version: 4.8
winget ID: Lazarus.Lazarus
License: Proprietary
Download: Official download

Silent install

Lazarus-setup.exe /SP- /VERYSILENT /SUPPRESSMSGBOXES /NORESTART

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

Or install with winget

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

Silent uninstall

winget

winget uninstall --id Lazarus.Lazarus --exact --silent --accept-source-agreements

Run the command from an elevated Command Prompt.

About the Inno Setup installer

Inno Setup installers share one set of switches. The uninstaller is usually unins000.exe in the install folder and takes the same silent switches.

Switch	What it does
`/VERYSILENT`	No windows at all.
`/SUPPRESSMSGBOXES`	Answer message boxes with their default.
`/NORESTART`	Do not restart after setup.
`/SP-`	Skip the "This will install..." prompt.
`/ALLUSERS`	Install for all users, if the setup supports both modes.
`/DIR="path"`	Install folder.
`/LOG="C:\Temp\install.log"`	Write a log file.

Deploy Lazarus with Microsoft Intune

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

Install command	`Lazarus-setup.exe /SP- /VERYSILENT /SUPPRESSMSGBOXES /NORESTART`
Uninstall command	Use the uninstaller from the install folder; winget is not available to the SYSTEM account by default.
Install behavior	System