Windows操作系统的众多显着特点之一是它报告错误的直接性。您在Windows上可能遇到的一个罕见错误是使用 VPN 时此系统上的所有 TAP-Windows 适配器当前正在使用消息。^{(All TAP-Windows adapter on this system are currently in use )}

此错误表明OpenVPN在Windows上使用的虚拟^(Windows)Turn/Tap网络适配器存在问题。当您尝试将更多客户端配置添加到另一个连接而配置错误的VPN连接时，它通常会出现。

此系统上的所有TAP-Windows适配器当前都在使用中

如果您遇到此错误，重新启用或重新安装适配器就足够了。跟着这些步骤：

1. 确认已安装最新版本的VPN软件。
2. 重新安装 TAP 驱动程序。
3. 重新启用网络适配器。

让我们更详细地了解上述修复错误的方法。

1]确认^(Confirm)已安装最新版本的VPN软件

在此处使用任何解决方案之前，请检查您是否拥有完整和最新的VPN软件安装。检查更新并确保。

2]重新安装TAP驱动程序

TAP 设备^{(TAP devices)}是完全由软件支持的虚拟网络内核设备，不受硬件网络适配器的支持。TAP 驱动程序^{(TAP drivers)}用于TAP设备工作，它们设计为具有对^(TAP)以太网^(Ethernet)隧道的低级内核支持。

您不需要单独安装TAP-windows，因为您的VPN安装程序包含它并与VPN软件一起自动安装。

TAP-Windows驱动程序有两种类型：

1. 适用于 Windows 10/8/7/Vista 的NDIS 6（TAP-windows6，版本 9.21.x）。
2. 适用于Windows XP^{(Windows XP)}的NDIS 5 驱动程序（TAP-windows，版本 9.9.x）。

阅读^(Read)：什么是 TAP-Windows 适配器驱动程序^{(What is TAP-Windows Adapter Driver)}？

您还需要确保安装了最新版本的TAP 驱动^(Drivers)程序。

通过打开来做到这一点C:\Program Files\TAP-Windows。导航到此目录。在这里，查看您已安装的版本号。如果您的OpenVPN版本过时或缺失，您可能需要重新安装TAP驱动程序。

如果您没有最新或完整安装，您需要先卸载您拥有的版本，转到C:\Program Files\TAP-Windows.

右键单击^{(Right-click)}可执行文件并选择Uninstall device > Run as administrator。

转到社区下载^{(Community Downloads)}，然后下载并安装其最新版本。

或者，进入页面并为您的 PC 获取TAP-Windows包，然后下载并运行安装。

确保选择TAP 虚拟以太网适配器^{(TAP Virtual Ethernet Adapter)}。

重新启动^(Reboot)您的 PC 以完成网络驱动程序的安装。

3]重新启用网络适配器

第三种可能的解决方法是重新启用您的网络适配器。请按照以下说明进行操作。

• 右键单击^{(Right-click)}任务栏上的连接图标，然后选择打开网络和 Internet 设置^{(Open Network and Internet settings)}。
• 单击更改适配器选项^{(Change adapter options)}。
• 浏览可用于定位TAP-Windows 适配器^{(TAP-Windows Adapter)}的网络适配器的描述。
• 右键单击适配器并点击 Disable。
• 最后，再次右键单击它并选择Enable。

上述解决方案应该可以解决该错误。

敲击Windows键，然后输入TAP。选择添加新的 TAP 虚拟以太网适配器^{(Add a new TAP virtual ethernet adapter)}，然后在用户帐户控制^{(User Account Control)}( UAC ) 对话框中选择是。^(Yes)然后，管理命令提示符会向您的系统添加另一个网络接口。享受^(Enjoy)。

All TAP-Windows adapters on this system are currently in use

One of the many notable features of the Windows operating sуstems is its straіghtforwardness in reporting errors. A rare error yоu could enсounter on yоur Windows is the All TAP-Windows adapter on this system are currently in use message when using a VPN.

This error indicates that there is an issue with the virtual Turn/Tap network adapter used by OpenVPN on Windows. It usually shows up when you try to add more client configuration to another connection while having a misconfigured VPN connection.

All TAP-Windows adapters on this system are currently in use

If you encounter this error, re-enabling or reinstalling the adapter will suffice. Follow these steps:

1. Confirm that the latest version of your VPN software is installed.
2. Reinstall the TAP driver.
3. Re-enable the Network adapter.

Let’s go into more detail on the above methods for fixing the error.

1] Confirm that the latest version of your VPN software is installed

Before using any solution here, check if you have the full and latest installation of the VPN software. Check for updates and ensure.

2] Reinstall the TAP driver

TAP devices are virtual network kernel devices supported entirely in software – and not backed up by hardware network adapters. TAP drivers are used for TAP devices to work and they are designed with low-level kernel support for Ethernet tunneling.

You don’t need to install TAP-windows separately, as your VPN installers include it and install it automatically along with the VPN software.

The TAP-Windows driver comes in two types:

1. NDIS 6 (TAP-windows6, version 9.21.x) for Windows 10/8/7/Vista.
2. NDIS 5 driver (TAP-windows, version 9.9.x) for Windows XP.

Read: What is TAP-Windows Adapter Driver?

You need to also ensure that the latest versions of the TAP Drivers are installed.

Do this by opening C:\Program Files\TAP-Windows. Navigate to this directory. Here, look at the version number that you have installed. If your version of OpenVPN is outdated or absent, you may have to reinstall the TAP driver.

If you don’t have the latest or a full installation, you need first to uninstall the version you have, go to C:\Program Files\TAP-Windows.

Right-click on the executable file and select Uninstall device > Run as administrator.

Go to the Community Downloads then download and install its latest version.

Alternatively, go down on the page and get the TAP-Windows package for your PC, then download and run the installation.

Ensure that you select a TAP Virtual Ethernet Adapter.

Reboot your PC to complete the network driver installation.

3] Re-enable the Network adapter

The third possible fix is to re-enable your network adapter. Follow the instructions below to do that.

• Right-click on the connectivity icon on your taskbar and select Open Network and Internet settings.
• Click on Change adapter options.
• Go through the description of the network adapters available to locate the TAP-Windows Adapter.
• Right-click on the adapter and hit Disable.
• Finally, right-click on it again and select Enable.

The solutions above should solve the error.

Strike the Windows key, then type in TAP. Select Add a new TAP virtual ethernet adapter and select Yes to the User Account Control (UAC) dialog. The administrative command prompt then adds another network interface to your system. Enjoy.

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