Driver Updated ((link)): Pnp0500

The hardware ID refers to a standard PC Communications (COM) Port

If you have ever ventured into the Device Manager on a Windows PC and spotted a yellow exclamation mark next to "PNP0500," you know the frustration of a malfunctioning serial port. The PNP0500 identifier is Microsoft’s Plug and Play hardware ID for standard COM port (serial port) controllers. These legacy ports are still critical for industrial machinery, GPS receivers, barcode scanners, medical devices, and Arduino/Raspberry Pi debugging. pnp0500 driver updated

If the provider is Microsoft, the driver version is typically 10.0.x for Windows 10/11. A third-party vendor (like FTDI, Prolific, or Silicon Labs) will have their own branding. The hardware ID refers to a standard PC

: There is a fascinating community "write-up" regarding Plug and Play (PnP) driver updates on older systems like Windows 7 and 8.1. Because Windows 10/11 drivers are often signed with modern attestation that older kernels don't recognize, enthusiasts have found that flipping a specific registry key Press Windows + X and select Device Manager

. Updates for this driver are typically handled automatically by the operating system through the generic "Communications Port" driver. Device Identification & Role Hardware Type : Legacy Serial Port (UART).

  1. Press Windows + X and select Device Manager.
  2. Expand Ports (COM & LPT).
  3. Look for Communications Port (COM1) or Standard Serial over Bluetooth link – but the PNP0500 can also appear under Other devices as an unknown device.
  4. Right-click the device and select Properties.
  5. Go to the Driver tab.
  6. Note the Driver Provider, Driver Date, and Driver Version.

How to Fix and Update the PNP0500 Driver: A Complete Guide If you’ve been digging through your Windows Device Manager and noticed a yellow exclamation mark next to "PNP0500"—or if your computer is suddenly failing to recognize an older peripheral—you aren’t alone.

Method 1: Update via Windows Update (Recommended for Most Users)

This is the safest method for a "PNP0500 driver updated" notification.