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Is there a command to initiate recognition of an USB device? How about a device that is connected by ethernet rj-45 or by serial port?

I've already tried Device Manager and anything else I could think of using GUI-wise.

I was thinking there might be some command to enter at the Command Prompt.

Devices are recognized by other computers.

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I am not sure what you want to do, but you may be able to do it with DevCon. Unfortunately, there does not seem to be a x64 version, so I have not used it for some time.

There is a link to the x64 version here.

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It should be part of windows driver kit, and there should be x64 version available in the kit. I remember that I used it on 64 bit version of 7. – AndrejaKo Jan 22 '11 at 3:29
@AndrejaKo: Yeh, I found a link to it. – paradroid Jan 22 '11 at 3:31
+1 for persistence... – Moab Jan 22 '11 at 4:13

On the device manager, there is option to detect devices. There should be a row of small icons on the top of the screen. One of them will have a computer and a magnifying glass. It's for device detection.

Circled icon will start hardware scan.

You can also right-click on the computer on the device manager and scan for hardware changes.

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@Moab I have it. – AndrejaKo Jan 22 '11 at 4:20
Ok, I always use >right click on Computer >manage, it does not show when you access DM this way, thanks for the screen shot. – Moab Jan 22 '11 at 14:25

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