It is possible to display those devices in the operating system's Device Manager. While that works, you may prefer to access a list of non-present devices only as it will speed things up considerable.
Device Cleanup Tool is a free portable program for all versions of Windows that displays all non-present devices sorted alphabetically by default. Each device is listed with its name, class and last use date. A click on a header allows you to sort by class or last used instead which can be useful depending on how many devices you find listed by it.
A double-click opens the selected device's properties in Windows which may reveal additional information about it. You may want to create a system restore point before you run any removal operations. The program offers two options to remove non-present devices. A right-click on any device opens a context menu with an option to remove it from Windows. A more radical approach allows you to select some or even all devices listed by the program and remove them in one go using the Devices menu at the top.
The operation should not cause issues on the computer. What you may experience however is that drivers may need to be installed for removed devices once they are connected to the system again. Device Cleanup Tool works similar to GhostBuster , another free program for the job. One core difference between the two programs is that GhostBuster is not listing last access times while Device Cleanup Tool is. Device Cleanup Tool is a tiny, portable program for Windows that uses less than 40 Kilobytes on the hard drive or storage device.
It is easy to use and includes an option to create System Restore points as a safeguard. While it may not be something that you need to run every day, it may make sense to run it every now and then. It is useful if you want to check if someone else connected a device to your computer. I for one like to have a clean system. Even if it has no advantage, I like to remove old entries from it that are of no use anymore.
So far as you know then, these non-present devices have no real impact on system performance. Can their presence have any other functional impact? Don, I have never seen proof that removing these devices speeds up the system in a way e.
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This was because earlier I had an Ethernet card with a connection by that name, even after the card was removed the operating system refused to forget it :. So applying this trick worked for me. Enter the following commands in the command prompt. By default, certain devices are not shown in the list. These hidden devices include:. There is a devnode for each device on a machine and the devnodes are organized into a hierarchical Device Tree.
The PnP manager creates a devnode for a device when the device is configured. A devnode contains the device stack the device objects for the device's drivers and information about the device such as whether the device has been started and which drivers have registered for notification on the device.
Devices that are part of a setup class that is marked as a NoDisplayClass in the registry for example, printers and non-PnP drivers. Devices that were physically removed from the computer but whose registry entries were not deleted also known as nonpresent devices.
Thus there are no such devices to view in the Device Manager. Users should never have to view nonpresent devices because a nonpresent device should not have their attention and should not cause any problems.
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