Question about Electronics - Others

1 Answer



Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 1,006 Answers

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;
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.

Posted on Oct 27, 2007


1 Suggested Answer

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

A 6ya expert can help you resolve that issue over the phone in a minute or two.
Best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
The service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.
Good luck!

Posted on Jan 02, 2017


Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

How can I download music to my fusion2 phone

First you:
2.9.1 Using the microSD Card as USB Mass Storage
To transfer all your favorite music and pictures from your PC to your mobile phone's microSD card, set the microSD card as USB mass storage.
1. Connect your mobile phone to your PC with the USB cable provided. Your PC will detect the microSD card as a removable storage device.
2. Open the notification bar, and then touch USB connected.
3. Touch Turn on USB storage in the dialog box that opens to confirm that you want to transfer files You can now transfer files from your PC to your mobile phone's microSD card. When your microSD card acts as USB mass storage, your mobile phone will not use this memory space. Ensure that you follow the correct procedures to disconnect the USB mass storage device (your mobile phone) from the PC when you have finished transferring files.

8.3.1 Copying Music to the microSD Card
1. Connect the phone to your computer with a USB cable and mount the microSD card.
2. On the PC, navigate to the USB drive and open it.
3. Create a folder in the root directory of the microSD card (for example, Music).
4. Copy the music from your computer to the folder you have created.
5. After copying music, unmount or eject the drive as required by your PC's operating system to safely remove the mobile phone.
6. Disconnect the mobile phone from the PC.

Once done open music player and play music.


Dec 13, 2012 | Computers & Internet

1 Answer

I'm going to install something in my Compaq, but I can't insert the cd because of the 3 springs. it's a wacom cd

Can u copy the CD to a USB storage device on another computer then use the USB on the Compaq to read the storage device?

Feb 25, 2011 | Computers & Internet

1 Answer

I am trying to trasfer a large amount of files from my macbook to a dell laptop. The mac will recognize the drive and i am able to backup and save files onto it, however when i plug the drive into the...

The problem most likely is the Dell does not recognize the MAC file format (HPFS), but the MAC will recognize the PC's FAT 32 file system.
First format the USB mass storage device using the Dell, format this device in FAT 32 not in NTFS because the MAC can read and write/copy PC format files but the Dell/PC cannot read MAC format files.
Then Safely remove this device, connect it to the MAC and copy the files onto this drive. When you connect this device to the Dell, you will be able to see the files.
Have fun.

Aug 13, 2010 | Iomega Computers & Internet

1 Answer

My PDA don't "see" the storage card.Can't perform any operations with Storage card.

Insert the storage card into another device (laptop with an adaptor ...). If the card isn't recognized then, it is faulty.

Aug 06, 2010 | Fujitsu Siemens Pocket Loox N520 Pocket PC

1 Answer

I cant's copy any data from my pc to other storage device

frist are you select you data and right click and go to the copy ...........

Jul 04, 2009 | Microsoft Windows Vista Ultimate Edition

1 Answer

This bloking the F: drive i wnato open the removebel drive how to open?

Try this : Click start, then My Computer, and the removal storage device should show with other drives. Click on Removable Disk to open the drive, and then click on required program to install.
To transfer a file copy to the removal storage device, right click on file and a box will open, go down to Send To, and click on Removable Disc and the file wil transfer to the removal storage device. Click on the Safely Remove Hardware icon in toolbar tray near clock and folow instructions to safely remove the removal storage device.

Dec 20, 2008 | Computers & Internet

1 Answer

My Olympus FE-340 is not recognized by my PC operating on XP

Make sure the camera is on and pc is selected on the camera screen when connected to the computer. You will need to have PC highlighted and select ok on the camera as this starts the camera and computer to communicate. Once communication established the LCD screen of the camera goes dark and the computer should generate a removable disk drive. Check the System Tray (lower right corner beside the PC time) for Safely Remove Hardware. When you click on it, it should read "Safely Remove USB Mass Storage Device Drive ?:" If you dont see that, then check the Device Manager to see if the camera is recognized as USB Mass Storage Device. The camera uses the driver usbstor.

Aug 06, 2008 | Olympus Cameras

1 Answer

Cd driver will not read copied data disk

Ok,Download software for recover your data from Memory Card, Phone, HDD or any other Storage Device ----
Download from the following link ------

Note- this software is works only with windows operating system so, connect your Memory Card, Phone, HDD or any other Storage Device to computer to recover data.

For any other help contact me.


Mar 22, 2008 | Toshiba Satellite M30 Notebook

1 Answer

SD and CF reader

The PC will see the card as a storage device so should read any capacity Compact Flash, or Secure Digital cards that you put in the readers.

The devices their used in usually have the capacity limitations as to what size cards they will read/write to.

Mar 21, 2008 | Fujitsu Siemens LifeBook P5020 Notebook

Not finding what you are looking for?
Electronics - Others Logo

Related Topics:

113 people viewed this question

Ask a Question

Usually answered in minutes!

Top Electronics - Others Experts

Donald DCruz
Donald DCruz

Level 3 Expert

17130 Answers


Level 3 Expert

102366 Answers

Brad Brown

Level 3 Expert

16852 Answers

Are you an Electronics - Other Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides