Method 1: Windows Update. This update is available through Windows Update. When you turn on automatic updating, this update will be downloaded and installed automatically. For more information about how to turn on automatic updating, see Windows Update: FAQ. Method 2: Microsoft Update Catalog.

Turn Bluetooth on and off: Select Start > Settings > Bluetooth & devices . Turn off Bluetooth , wait a few seconds, then turn it back on. Remove the Bluetooth device, then add it again: Select Start > Settings > Bluetooth & devices > Devices .

This article describes an issue that occurs when a Bluetooth device connects to a computer in Windows 8.1 or Windows RT 8.1. An update is available to resolve this issue. Before you install this update, check out the Prerequisites section.

btha2dp. The size of the Event Tracing for Windows (ETW) logs and the parsed output file are typically quite large, especially for bthport and btha2dp. Although complete traces are necessary to analyze the scenario in detail, for specific drivers, you can enable only those drivers.

Details: The local Bluetooth adapter has failed in an undetermined manner and will not be used. The driver has been unloaded. Resolution. Hotfix information. A supported hotfix is available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article.

This problem occurs because Bthport.sys does not process device I/O control requests that are queued while the device is in a stopped state correctly. When a device is removed, the driver should not be unloaded if an application is waiting for any device I/O control requests to complete.

If you are having problems with Bluetooth audio devices (or Bluetooth in general) in Windows 11, see Fix Bluetooth problems in Windows . Learn how to troubleshoot and fix Bluetooth audio connection issues in Windows 10 and 11.

A software update to the external provider’s DNS servers resulted in the distribution of corrupted DNS records that affected connectivity to the Windows Update service.

在 Windows 11 中，可通过两种方法检查蓝牙是否已打开。 操作方法如下： 签入快速设置： 选择任务栏右侧的“ 网络 ”、“ 声音 ”或“ 电池 ”图标 ( )，查找“ 蓝牙 ” 快速设置，然后选择“ 蓝牙 ” 将其打开。 如果你的 Windows 11 设备未连接到任何蓝牙外部设备，你将看到“未连接”。 签入设置： 选择“ 开始 ” >“ 设置 ” >“ 蓝牙和其他设备 ” 。 确保已开启“ 蓝牙 ” 。 注意: 当你在“设置”中打开蓝牙时，会立即显示以下消息： “可发现 < computer_name> ” 检查蓝牙设备. 确保蓝牙设备已打开、已充电或具有新电池，并且位于电脑的连接范围内。 然后尝试执行以下操作： 关闭你的蓝牙设备，等待几秒钟，然后将其重新打开。

Windows 11 Windows 10. Si te encuentras con problemas al intentar conectarte a un dispositivo Bluetooth, estos son algunos pasos de solución de problemas que puedes probar. Nota: Para obtener información general sobre cómo conectar un dispositivo Bluetooth a tu PC, consulta Emparejar un dispositivo Bluetooth en Windows. Antes de empezar.