Standard Serial over Bluetooth link (COM22) Driver

The Standard Serial over Bluetooth link (COM22) driver lets Windows present a compatible Bluetooth device as a virtual serial port, allowing software to communicate through COM22. Provided through Microsoft’s Windows Bluetooth support, it is useful for users connecting serial-enabled Bluetooth equipment, such as diagnostic tools, GPS receivers, or industrial adapters.

Key Features

• Virtual serial communication: Supports applications that exchange data with compatible Bluetooth devices using the Serial Port Profile (SPP).
• Assigned COM port access: Lets serial-based software select COM22 as its connection port. The number identifies a local port assignment, not a specific hardware model.
• Windows integration: Works with Windows Bluetooth services and a correctly installed Bluetooth adapter driver to support paired serial devices.
• Legacy system support: Applicable Windows environments include Windows 10, 8.1, 7, Vista, and XP, although availability depends on the Bluetooth adapter, software stack, and connected device.

How to Install Standard Serial over Bluetooth link (COM22) Driver

1. Check the connection requirements. Confirm that your Bluetooth equipment supports serial communication and that your PC’s Bluetooth adapter is enabled. For Windows 10/11 systems, verify adapter compatibility separately; Windows 11 support is not confirmed by this listing.
2. Check the download source. Before choosing a Standard Serial over Bluetooth link (COM22) driver download for Windows, check whether Windows already provides the required component. Prefer Windows Update or your Bluetooth adapter manufacturer’s official support resources over an unverified standalone package.
3. Install or update Bluetooth support. Run Windows Update, or install the appropriate adapter driver for your Windows version and system architecture. Microsoft’s virtual serial-port component is normally supplied through Windows rather than as a separate device-specific installer.
4. Pair your serial Bluetooth device. Use Windows Bluetooth settings to pair the equipment and enable its serial service where available. Windows may assign a COM number other than COM22.
5. Confirm the port and test. Open Device Manager, expand Ports (COM & LPT), and check the assigned port. Select that same port in your application, apply the equipment’s required communication settings, and test the connection.

Keep your Bluetooth adapter software and Windows components updated to help resolve connection problems. The latest version should always be one compatible with your system, especially on older Windows releases. If you need a free download, use official sources and avoid tools that require payment merely to locate a built-in Microsoft driver.

Common Issues and Fixes

• Install fails or rolls back: Remove any existing “Standard Serial over Bluetooth link” entries in Device Manager (enable View > Show hidden devices), restart Windows, then re-pair the Bluetooth device so Windows installs the Microsoft driver cleanly.
• Device not detected / COM22 missing: Check that the Bluetooth device is paired and “Bluetooth Support Service” is running. Remove the pairing, run the Bluetooth troubleshooter, then pair again and look under Ports (COM & LPT).
• COM port conflict: Another app may hold COM22, or an old pairing may have left a stale port. Close serial apps, then in Device Manager open the port > Port Settings > Advanced and assign an unused COM number, or remove the stale device and re-pair.