Most SoftPaqs will automatically launch a setup wizard. Follow the on-screen prompts. Manual Installation (If Auto-Setup Fails): Open Device Manager . Right-click the PCI Serial Port with the error. Select Update Driver > Browse my computer for drivers .
If you are on Windows 10 or 11, you may need to right-click the file, go to Properties > Compatibility , and set it to run for Windows 7 . Sp46134.exe
This file is specifically for Intel-based systems with AMT support. If your PC uses an AMD processor or lacks Intel ME hardware, this driver will not install. Most SoftPaqs will automatically launch a setup wizard
If you see a "PCI Serial Port" or "PCI Simple Communications Controller" with a yellow exclamation mark in your Windows Device Manager, this is often the exact file needed to resolve the issue. Key Technical Details Hewlett-Packard (HP) / Intel. Right-click the PCI Serial Port with the error
Intel Active Management Technology (AMT) / Management Engine.
Sp46134.exe: Everything You Need to Know is a specific HP SoftPaq executable used to install critical system drivers on Hewlett-Packard (HP) business desktops. Specifically, this file provides the Intel Management Engine (ME) Components , which include the Intel Local Management Service (LMS) and Serial-over-LAN (SOL) support.