Commands for installing Questionmark Secure Browser without prompts, removing it again and detecting it from deployment tools. A command is shown only when it is certain: from the manifest or the installer technology’s documented default.
Related guide: Silent install switches: MSI, NSIS, Inno Setup · Uninstall a program with the registry or PowerShell
With winget
PowerShell
winget install --id Learnosity.QuestionmarkSecure -e --silent --accept-package-agreements --accept-source-agreementswinget upgrade --id Learnosity.QuestionmarkSecure -e --silentwinget uninstall --id Learnosity.QuestionmarkSecure -e --silentBy installer
Any CPU · EXE (NSIS) · Current user
Silent install
latest_qsb.exe /SCustom folder
latest_qsb.exe /S /D=C:\Apps\questionmark-secure-browser- Uninstall registry key
- HKCU\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Questionmark Secure Browser
PowerShell: download, verify, install
Downloads the official file, checks its SHA256 and installs it silently.
install-questionmark-secure-browser.ps1
$url = 'https://qsb.questionmark.com/qsb/latest_qsb.exe'
$sha256 = '8FC872B0F5388418C3E7C5E77FE74A9EA51BF5ED8B7F77276E2A97EC8A5F6757'
$file = Join-Path $env:TEMP 'latest_qsb.exe'
Invoke-WebRequest -Uri $url -OutFile $file -UseBasicParsing
if ((Get-FileHash $file -Algorithm SHA256).Hash -ne $sha256) { throw 'SHA256 mismatch' }
Start-Process -FilePath $file -ArgumentList '/S' -Wait 
