Device Cleanup Tool是一款免费的便携式工具，可让您从Windows计算机中删除多个或所有旧的、不存在的、未使用的、以前的硬件设备。不存在的设备^{(Non-present devices)}是那些曾经安装但现在不再连接到计算机的设备。使用Windows自带的设备管理器^{(Windows Device Manager)}时，可以一一删除设备；而不是一次全部。这就是这个设备清理工具^{(Device Cleanup Tool)}可以做到的。您可以选择一个、多个或所有不存在的设备并将它们一起删除。

删除所有不存在的设备

使用设备清理工具^{(Device Cleanup Tool)}非常简单。只需从^(Simply)Uwe Sieber 网站^{(Uwe Sieber website)}下载 zip 文件。解压 zip 文件夹后，您将看到两个版本的设备清理工具^{(Device Cleanup Tool)}；一个用于 32 位，另一个用于 64 位 PC。双击^{(Double-click)}适合您系统的.exe文件。^(.exe)

该工具会立即列出您 PC 中不存在的设备。您将看到设备名称、其类别以及自上次使用设备之日起的天数。您可以在图像中看到最后使用的天数，例如 36 天、59 天等。

如该工具的帮助文件中所述，^(Help)设备清理^{(Device Cleanup)}工具列出的所有设备当前都“不存在”。这意味着，通常，他们有问题代码 45，即：

CM_PROB_PHANTOM, The device currently exists only in the registry.

“上次使用”时间来自设备注册表项的写入时间：^(Write)

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enu

在某些Windows PC^(PCs)上，这个时间是按启动计算的；因此，这些PC^(PCs)上的设备将具有相同的年龄。但是，在大多数Windows上，时间是在设备激活时设置的；因此，对于此类系统，“最后使用”时间是相关的。

从设备清理^{(Device Cleanup)}工具生成的列表中，您可以选择一个、多个或所有设备并将它们一起删除。如果设备再次连接，下次使用该工具时，它将被检测为新设备。

设备清理^{(Device Cleanup)}工具的工具栏中有三个选项卡——文件^{(– File)}、设备^(Devices)和帮助^(Help)。

点击文件^(File)，可以看到刷新^(Refresh)（F5）、创建系统还原点^{(Create System Restore Point)}、显示Windows设备管理器^{(Show Windows Device Manager)}、退出^(Exit)等功能。

当您单击“显示 Windows 设备管理器”时，会打开内置设备管理器。它就像Windows设备管理器的快捷方式。设备清理^{(Device Cleanup)}工具未列出非 PnP 设备和“软”设备。那是因为它们无法自动重新安装。因此^(Hence)，为了删除它们，您需要使用Windows 设备管理器^{(Windows Device Manager)}。

此工具的创建者还警告您要小心使用Microsoft MEDIA类设备。在删除这些列出的设备之前，请^(Make)确保您知道如何处理它们。

设备^(Devices)选项卡可让您选择所有^{(Select all)}设备和删除选定^{(Remove selected)}设备。要删除单个设备，只需右键单击该设备，然后单击Remove Device。请记住^(Remember)，您必须拥有管理员权限才能删除设备；否则，您可能会收到“拒绝访问”错误。

“帮助^(Help)”选项卡仅提供有关该工具的详细信息，包括其版本号。

设备清理工具免费下载

您可以从此网页^{(web page)(web page)}下载该工具。

你们中的一些人可能也想看看Device Remover。^{(Some of you might want to have a look at Device Remover too.)}

Remove all Non present devices on Windows 10 with Device Cleanup Tool

Device Cleanup Tool is a free portable tool that lets you remove multiple or all old, non-present, unused, previous hardware devices from your Windows computer. Non-present devices are those devices that were once installed but are now no longer attached to the computer. When you use the built-in Windows Device Manager, you can delete the devices one-by-one; and not all at once. This is what’s possible with this Device Cleanup Tool. You can select one, multiple or all non-present devices and delete them together.

Remove all Non present devices

Using the Device Cleanup Tool is very easy. Simply download the zip-file from the Uwe Sieber website. Upon extracting the zip folder, you will see two versions of the Device Cleanup Tool; one for 32-bit and another for 64-bit PCs. Double-click on the .exe file that is suitable for your system.

The tool immediately lists down the non-present devices in your PC. You will see the device name, its class, and the number of days from the day when the device was last used. You can see in the image last used days such as 36 days, 59 days, etc.

As mentioned in the tool’s Help file, all those devices listed by the Device Cleanup tool are currently ‘Not present’. That means, usually, they have the problem code 45, which is:

CM_PROB_PHANTOM, The device currently exists only in the registry.

The ‘last used’ time comes from the Write time of the device’s registry key under:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enu

On some Windows PCs, this time is calculated as per the startup; hence the devices on these PCs will have the same age. However, on most Windows, the time is set when the device gets active; hence, for such systems, the ‘last used’ time is relevant.

From the list generated by the Device Cleanup tool, you can select one, multiple, or all devices and delete them together. In case the device is again attached, it will be detected as a new device, the next time you use the tool.

There are three tabs in the toolbar of the Device Cleanup tool – File, Devices, and Help.

When you click on File, you can see functions such as Refresh (F5), Create System Restore Point, Show Windows Device Manager, and Exit.

When you click on ‘Show Windows Device Manager’ the built-in Device Manager opens up. It’s like a shortcut to the Windows device manager. The non-PnP devices and ‘soft’ devices are not listed in by the Device Cleanup tool. That’s because they cannot be automatically reinstalled. Hence, in order to delete them, you need to use the Windows Device Manager.

The creators of this tool also warn that you be careful with the Microsoft MEDIA class devices. Make sure that you know what to do with such listed devices before you delete them.

The Devices tab lets you Select all devices and Remove selected devices. To delete single devices, simply right-click on the device and click on Remove Device. Remember, you will have to have administrator rights for removing the devices; otherwise, you may get an ‘Access Denied’ error.

The Help tab, just gives details about the tool, including its version number.

Device Cleanup Tool free download

You can download the tool from this web page.

Some of you might want to have a look at Device Remover too.

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