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Thread: Hidden Devices

  1. #1
    New Lounger
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    I have recently installed Windows 7 (32 bit) and I am generally very impressed (previously I ran Windows XP), I have found a few peculiarities but managed to sort most of them. However one issue is still bugging me.

    Neither my Epson printer nor my Logitech Game Controller appear on the Devices and Printers Tab in Control Panel - yet both are installed and work fine. I can get them to appear in Device Manager by selecting View>Show Hidden Devices but why should this be so? Is there any way I can get these to become "unhidden" on a permanent basis?

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    Super Moderator CLiNT's Avatar
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    These guys have a decent tutorial...
    How to Show and Access Hidden and Ghost Devices and Drivers in Device Manager

    or

    How to REALLY show hidden devices in Device Manager
    Also you can install a registry tweak that will accomplish the same thing but make the behavior permanent instead of a one-time tweak from the command line like is shown above. Here's how to do it the registry way:

    [Start] [Run] [Regedit]
    Registry Key: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Session Manager\Environment
    Data Type: REG_SZ [String Value] // Value Name: DEVMGR_SHOW_NONPRESENT_DEVICES
    Modify/Create the Value Name [DEVMGR_SHOW_NONPRESENT_DEVICES] according to the Value Data listed below.
    Value Data: [1 = Show Devices / 0 = Hide Devices]
    Exit Registry and Reboot
    Unfortunately none of these will make it permanent, you still have to click: "show hidden device".
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    New Lounger
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    Quote Originally Posted by Clint Rossmere View Post
    These guys have a decent tutorial...
    How to Show and Access Hidden and Ghost Devices and Drivers in Device Manager

    or

    [url="http://www.bleedinedge.com/forum/showthread.php/23682-How-to-REALLY-show-hidden-devices-in-Device-Manager..."]

    Unfortunately none of these will make it permanent, you still have to click: "show hidden device".

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    New Lounger
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    Many thanks, but why is my printer a hidden device in the first place?

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    Is the printer a USB printer and is it powered off or is the USB cable unplugged?

    Joe
    Joe

  6. #6
    New Lounger
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    It's an Epson PhotoR200 with USB connection and it is powered on and plugged into a USB port.

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    Super Moderator CLiNT's Avatar
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    My HP H470 printer is hidden too, probably because it is a USB based printer. It will show up only when unhidden, and furthermore, it will
    show up when unplugged as greyed-out when "show hidden devices" are selected in device manager.

    It is probably because a USB based printer is not on a more dedicated communication channel like the older parallel port connection type might be.
    It could very well be just the way the Windows 7 operating system's device manager chooses to recognize USB based printers.
    You should not be using the device manager to configure you printer.
    DRIVE IMAGING
    Invest a little time and energy in a well thought out BACKUP regimen and you will have minimal down time, and headache.

    Build your own system; get everything you want and nothing you don't.
    Latest Build:
    ASUS X99 Deluxe, Core i7-5960X, Corsair Hydro H100i, Plextor M6e 256GB M.2 SSD, Corsair DOMINATOR Platinum 32GB DDR4@2666, W8.1 64 bit,
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