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Empty device manager

The device manager screen is completely blank. This seems to prevent adding any new printer, camera, etc. How do I fix this?

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  • 16 Answers

User permisions need to be as an administrator. System restore, or reinstal windows.

Posted on Dec 26, 2013

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Posted on Jan 02, 2017

parrotheadpc
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SOURCE: acer aspire wont connect to internet

Possible Virus and Malware
There is a good chance that you have a virus or malware that is keeping those programs from opening. It does not matter these days what security you have if the door to the web is opened. At the end of this are two links to programs that you should load up and run. The first is MalwareBytes Ant-Malware Tool, the other is Avast Anti-Virus 4.8, install these two and let them perform scans.

Run MalwareBytes first and perform a quick scan, when it finishes, it will ask you to post the results, when it does delete everything it finds.
Run Avast and install it, when it asks, go ahead and schedule a pre-boot scan of your entire system. This should get rid of most problems…. Good Luck…..

http://www.filehippo.com/download_malwarebytes_anti_malware/

http://www.filehippo.com/download_avast_antivirus/

Posted on Oct 06, 2009

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My usb ports are not recognizing any devices such as my iphone, ipod, etc. I have a dell dimension 4700 runnning win xp sp3


It seems that many people are still getting the 'USB Device not Recognized' problem from time to time. Unfortunately there is no easy fix.

Firstly, it's recommended that you make sure every one of your motherboard drivers are completely up-to-date, but you probably already knew that.

In XP, after a USB port isn't used for a long while the USB driver built into the OS sets the OHCI controller to suspend. When you plug a device back in, it can sometimes fail to 'wake up' properly. This problem was supposedly fixed in SP1 but there is a related registry hack that may still be able to help.

Run regedt32.exe and navigate to;

HKEY_LOCAL_Machine\SYSTEM\CurrentControlSet\Services\Usb

Create the Usb key if it doesn't already exist. Under this key, create a new DWORD value called DisableSelectiveSuspend and give it a value of 1. Then restart the PC.

A long shot perhaps, but I recall having similar problems with a USB hub built into my Microsoft keyboard and adding this key seemed to solve it. It wouldn't hurt in trying icon_smile.png.

Alternatively, removing all entries relating to USB in Device Manager and all associated USB drivers will force XP into refreshing the USB driver stack.

Begin by unplugging all USB devices, then use Add/Remove Programs in Control Panel to uninstall any USB driver software. Next, boot up into safe mode and go to Device Manager. Once in device manager make sure 'Show hidden devices' is checked under the View menu. Uninstall all device entries in this order;

1. USB peripheral devices (printers etc.)

2. HID and/or Composite USB (Human Interface Devices) You're using PS/2 input devices so you may not have this entry.

3. USB Root Hub(s)

4. USB Host Controller(s) (Universal or Enhanced Host Controllers)

Then boot back into Windows (not safe mode) and it should populate the Root Hubs & Host controllers again. Proceed to plug your USB devices back in, starting with your powered hub. Be aware that most USB printers and scanners need to have their drivers installed first before you plug them in.

Any doubts you can get the help of a technician through

www.thebestpcdoctor.com

Toll free: 877 407 9229

Dec 04, 2010 | Dell Dimension 4700 PC Desktop

1 Answer

My crystal eye web cam is completely gone from my computer.


ACER Aspire 5737Z – Acer Crystal Eye WebCam camera no found
I had the symptom where ‘no camera found’ and the device not showing in device manager (unless you expose hidden devices, but was visable via non present hardware (exposed via system variable
devmgr_show_nonpresent_devices=1)
Solution – Disable and Enable USB Controllers
1. From Device Manager
2. Right click and uninstall the Standard Enhanced the Universal Serial Bus controllers -> Standard Enhanced PCI to USB Host Controller – do this for both via right click - uninstall.
3. Right Click <YourSystemName> from the top of Device Manager, Click Scan for Hardware Changes.
4. Your Acer Crystal Webcam should now back under Imaging Devices, and working again!
5. Strange but seems to fix it, good luck!
I also pressed the top of the laptop screen to the left and right of the camera at around the same time. Not sure if something clicked back into place, either way above is a simple thing to try... Hope this helps.

Jan 22, 2010 | Acer Aspire 5610-4648 Notebook

1 Answer

New problem usb printer and other usb used for camera crashes my targa laptop computer when trying to use them


One or more of your USB drivers is likely corrupted.
First: Use Device Manager to uninstall ALL USB drivers. It will reload all current when you close the device manager.
If you have a registry fixer or optomizer - run it and do a complete registry scan to fix all problems it finds.
Second: Reboot your computer and when it is entirely booted install either the printer or the camera using the install CD or download the Install package from the manufacturer website.
Third: After installation is complete reboot your computer again. After fully booted install the other device in the same manner and don't forget to do a reboot immediately after.

Oct 25, 2009 | Computers & Internet

1 Answer

When i turn my camera on, its a blank screen with


Lens errors are fairly common. Usually it's sand or grit interfering with the lens extension mechanism. Or the camera's been dropped with the lens extended. Or the camera has been powered on, but the lens had been blocked preventing its extension. Or the battery ran down with the lens extended ...

Here are some things that you can do to try to correct it. They only seem to work for less than 50% of the lens errors, but if the camera is out of warranty, they're worth a try.

Oct 03, 2009 | Canon PowerShot A75 Digital Camera

3 Answers

Cannot recognize usb port


Firstly, it's recommended that you make sure every one of your motherboard drivers are completely up-to-date, but you probably already knew that.

In XP, after a USB port isn't used for a long while the USB driver built into the OS sets the OHCI controller to suspend. When you plug a device back in, it can sometimes fail to 'wake up' properly. This problem was supposedly fixed in SP1 but there is a related registry hack that may still be able to help.

Run regedt32.exe and navigate to;

HKEY_LOCAL_Machine\SYSTEM\CurrentControlSet\Services\Usb

Create the Usb key if it doesn't already exist. Under this key, create a new DWORD value called DisableSelectiveSuspend and give it a value of 1. Then restart the PC.

A long shot perhaps, but I recall having similar problems with a USB hub built into my Microsoft keyboard and adding this key seemed to solve it. It wouldn't hurt in trying icon_smile.png.

Alternatively, removing all entries relating to USB in Device Manager and all associated USB drivers will force XP into refreshing the USB driver stack.

Begin by unplugging all USB devices, then use Add/Remove Programs in Control Panel to uninstall any USB driver software. Next, boot up into safe mode and go to Device Manager. Once in device manager make sure 'Show hidden devices' is checked under the View menu. Uninstall all device entries in this order;

1. USB peripheral devices (printers etc.)

2. HID and/or Composite USB (Human Interface Devices) You're using PS/2 input devices so you may not have this entry.

3. USB Root Hub(s)

4. USB Host Controller(s) (Universal or Enhanced Host Controllers)

Then boot back into Windows (not safe mode) and it should populate the Root Hubs & Host controllers again. Proceed to plug your USB devices back in, starting with your powered hub. Be aware that most USB printers and scanners need to have their drivers installed first before you plug them in.

Hopefully some of this may be of help, let us know how you get on.

Remenber to Rate me on FixYa!!
Thanks

Aug 18, 2008 | Canon LASER SHOT LBP-2900 Printer

1 Answer

Computer won't recognize camera


Try NOT connecting your camera to your computer.

The best way to download pictures from your camera to your computer involves removing the memory card from the camera and plugging it into a card reader (either built-in to the computer or connected via USB). This is likely to be faster than connecting the camera to the computer, and won't run down your camera's batteries.

Once the card is plugged in, it will appear to your computer as a removable drive. You can use the operating system's drag&drop facility to copy pictures from the card to the computer's hard drive, the same way you copy any other files. Or you can use any photo management program such as Picasa.
Organize edit and share your photos

Jun 14, 2008 | Canon PowerShot SD700 IS Digital ELPH /...

1 Answer

USB Port Unrecognizable


It seems that many people are still getting the 'USB Device not Recognized' problem from time to time. Unfortunately there is no easy fix.

Firstly, it's recommended that you make sure every one of your motherboard drivers are completely up-to-date, but you probably already knew that.

In XP, after a USB port isn't used for a long while the USB driver built into the OS sets the OHCI controller to suspend. When you plug a device back in, it can sometimes fail to 'wake up' properly. This problem was supposedly fixed in SP1 but there is a related registry hack that may still be able to help.

Run regedt32.exe and navigate to;

HKEY_LOCAL_Machine\SYSTEM\CurrentControlSet\Services\Usb

Create the Usb key if it doesn't already exist. Under this key, create a new DWORD value called DisableSelectiveSuspend and give it a value of 1. Then restart the PC.

A long shot perhaps, but I recall having similar problems with a USB hub built into my Microsoft keyboard and adding this key seemed to solve it. It wouldn't hurt in trying icon_smile.png.

Alternatively, removing all entries relating to USB in Device Manager and all associated USB drivers will force XP into refreshing the USB driver stack.

Begin by unplugging all USB devices, then use Add/Remove Programs in Control Panel to uninstall any USB driver software. Next, boot up into safe mode and go to Device Manager. Once in device manager make sure 'Show hidden devices' is checked under the View menu. Uninstall all device entries in this order;

1. USB peripheral devices (printers etc.)

2. HID and/or Composite USB (Human Interface Devices) You're using PS/2 input devices so you may not have this entry.

3. USB Root Hub(s)

4. USB Host Controller(s) (Universal or Enhanced Host Controllers)

Then boot back into Windows (not safe mode) and it should populate the Root Hubs & Host controllers again. Proceed to plug your USB devices back in, starting with your powered hub. Be aware that most USB printers and scanners need to have their drivers installed first before you plug them in.

Hopefully some of this may be of help, let us know how you get on.

Jun 04, 2008 | Microsoft LifeCam VX-3000 Web Camera

1 Answer

Acer aspire 5630


Do you have installed the original driver???

if yess soo :

Possibilities:
1) One of your USB devices have faulted, or is causing a resource conflict (or similar)
-- Remove all USB devices, and reboot.
2) Your USB chip/ports have been damaged.
-- Find a spare HardDisk or bacjup your data and re-install Windows and see how that goes.
3) Your Power Supply Unit (PSU) isnt supplying enough power to your PC (usually caused by a Video card upgrade). Try a more powerful PSU ... 400watts should do the trick
4) Bad memory (RAM) can cause wierd problems. run memtest for an hour to make sure your memory is ok





It seems that many people are still getting the 'USB Device not Recognized' problem from time to time. Unfortunately there is no easy fix.
Firstly, it's recommended that you make sure every one of your motherboard drivers are completely up-to-date, but you probably already knew that.
In XP, after a USB port isn't used for a long while the USB driver built into the OS sets the OHCI controller to suspend. When you plug a device back in, it can sometimes fail to 'wake up' properly. This problem was supposedly fixed in SP1 but there is a related registry hack that may still be able to help.
Run regedt32.exe and navigate to;
HKEY_LOCAL_Machine\SYSTEM\CurrentControlSet\Services\Usb
Create the Usb key if it doesn't already exist. Under this key, create a new DWORD value called DisableSelectiveSuspend and give it a value of 1. Then restart the PC.
A long shot perhaps, but I recall having similar problems with a USB hub built into my Microsoft keyboard and adding this key seemed to solve it. It wouldn't hurt in trying .
Alternatively, removing all entries relating to USB in Device Manager and all associated USB drivers will force XP into refreshing the USB driver stack.
Begin by unplugging all USB devices, then use Add/Remove Programs in Control Panel to uninstall any USB driver software. Next, boot up into safe mode and go to Device Manager. Once in device manager make sure 'Show hidden devices' is checked under the View menu. Uninstall all device entries in this order;
1. USB peripheral devices (printers etc.)
2. HID and/or Composite USB (Human Interface Devices) You're using PS/2 input devices so you may not have this entry.
3. USB Root Hub(s)
4. USB Host Controller(s) (Universal or Enhanced Host Controllers)
Then boot back into Windows (not safe mode) and it should populate the Root Hubs & Host controllers again. Proceed to plug your USB devices back in, starting with your powered hub. Be aware that most USB printers and scanners need to have their drivers installed first before you plug them in.
Hopefully some of this may be of help, let us know how you get on.

Oct 25, 2007 | Acer Aspire 5630 Notebook

2 Answers

Usb


USB port incorrectly set, very rare to have port problem but every printers usb port is uniquely identified to computer unlike lpt ports. Disconnect usb, Delete driver, download complete driver package from epson site, run software then connect printer when instructed

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4 Answers

No usb port found


If you can't find such on your machine, then it's either disabled, the BIOS is out of date, the OS doesn't support your USB (Examples abound!) or other. I cut my time loss by adding an USB PCI card.

Sep 06, 2005 | Olympus Camedia C-740 Ultra Zoom Digital...

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