Standard Serial over Bluetooth link (COM1) Driver

The Standard Serial over Bluetooth link (COM1) driver lets Windows present a compatible Bluetooth connection as a virtual serial port, allowing software to communicate with paired devices using serial commands. This Microsoft component is useful when a Bluetooth instrument, GPS receiver, or other serial-enabled accessory requires a COM port rather than a conventional wireless connection.

Although listed in the USB category, this device entry represents a virtual Bluetooth serial link—not a physical USB serial adapter. Its operation depends on your Bluetooth adapter, the Bluetooth software stack, and the connected device’s support for the Serial Port Profile (SPP).

Key Features

• Virtual serial communication: Provides a COM-port interface for compatible Bluetooth accessories and applications that use serial connections.
• Microsoft integration: Works with Windows Bluetooth components to support serial data exchange without a physical serial cable.
• Application compatibility: Allows supported software to select the assigned COM port and communicate with a paired accessory.
• Legacy Windows support: Listed for Windows 10, 8.1, 7, Vista, and XP; availability and setup can vary by Bluetooth hardware and operating system.

How to Install Standard Serial over Bluetooth link (COM1) Driver

1. Check your system and adapter. Confirm your Windows version and whether it is 32-bit or 64-bit. Make sure the Bluetooth adapter is enabled and has a working driver.
2. Choose a trusted source. Before selecting a Standard Serial over Bluetooth link (COM1) driver download for Windows, check Windows Update and your computer or Bluetooth adapter manufacturer’s support resources. This Microsoft component is commonly supplied through Windows rather than a separate installer.
3. Pair the accessory. Open Bluetooth settings, pair your device, and enable its serial service if required. Some devices need an outgoing COM port configured in Bluetooth settings.
4. Install or update through Device Manager. Locate the entry under Ports (COM & LPT), if present, and select Update driver. Let Windows search automatically, or select a verified compatible package you already downloaded.
5. Verify the port assignment. Restart if prompted, then select the assigned port in your application. Windows may assign a number other than COM1; use the number shown in Device Manager.

Keep the driver and Bluetooth adapter software updated through trusted channels. For Windows 10/11 systems, check compatibility separately: Windows 11 is not included in this page’s listed OS support. The latest version should match your hardware and OS, and any free download should come from a verified source—not a tool that promises to fix every driver issue.