run a downloaded sp45367.exe if its digital signature tab (right-click > Properties > Digital Signatures) is missing or shows "Unknown Publisher."
The HP SoftPaq is a driver package specifically designed to resolve "PCI Serial Port" errors (often identified as Code 28 in Device Manager) for older HP business desktops. It provides support for Intel Active Management Technology (AMT) . Key Technical Details sp45367exe hp download exclusive
: Provides essential drivers for Intel Active Management Technology (AMT). Components Included Intel Local Management Service (LMS). Serial-over-LAN (SOL) support. Target Devices : Common for business-class desktops such as the HP Compaq 6000 Pro HP Compaq 8000 Elite SFF Operating Systems run a downloaded sp45367