diff --git a/Install-SimpleInOut.ps1 b/Install-SimpleInOut.ps1
index d865f34..4b57d72 100644
--- a/Install-SimpleInOut.ps1
+++ b/Install-SimpleInOut.ps1
@@ -6,7 +6,7 @@ $INSTALLER = Download-File -URL $URL
 
 # Install the app
 LogMsg "Installing latest version of Simple In/Out from ""${INSTALLER}"""
-Try { Start-Process "msiexec.exe" -ArgumentList "/i ${INSTALLER} /qn /norestart" -Wait }
+Try { Start-Process "msiexec.exe" -ArgumentList "/i ${INSTALLER} /qn /norestart ALLUSERS=1" -Wait }
 Catch { LogErr $_.Exception.Message }
 
 # Delete the installer