Question about Computers & Internet

1 Answer

Front usbs not working(suddenly)

Have unistalled them from device manger and tried to refind them but did not work,if i plug either my memory stick or card readers or ipod which did work till 2weeks ago it just says usb not reconised and no driver installed but they did all work to this point ..i presume the comp can reconise it because it comes up with the usb not reconised warning when installed but cant locate in "my computer" as h drive or g drive etc wireless mouse etc works but nothing in the 2 front usb ports..tried to find usb in the set up bios menu but got scared and backed out of it.im running xp pro and sp2 but other than that im a newby to all this side of it all .please help son driving me crazy wanting to update i pod

Posted by on

  • pawaz May 06, 2009

    i repaired my win XP,and it freezed at 34 % saying the software you are installing hasnt passed win log testing for some drivers i have forgotten their name. so went through this labourious process of deleting, the drivers in cmd prompt, untill i finally repaired Win Xp...The problen now is my USB ports doesnt read anything and cant find the drivers,there are no drivers installed for the usb,in device manager the usb section has a yellow question mark...thanks inadvance for helping

×

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 1,006 Answers

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.


AND PLEASE RATE THIS SOLUTION AS FIXYA IF MY POST WAS HELPFULL

Posted on Nov 16, 2007

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

Sandisk cruzer 8gb suddenly not recognized when connected to my computer


1. Try the other USB slots to see it the board is ok. Most modern pcs have two slots in the front and two to four slots in the back, try them all.

2. Do you have another pc that you can plug it into? If it works on that one you may have driver problem or the board is bad on the other one.

3. Have you tried to plug other USB devices into the slot(s) to see if the port is ok?

I have the same one and have had to mess it sometimes. Have to right clicked the "Safely Remove Hardware" in the right corner of the task bar. Right click and then left click the Safely Remove Hardware. That will show you all USB devices loaded. If you see the Flash Drive, click it and when you see the next prompt to remove it wait a few seconds and then plug it back in. If that does not work, reboot and leave the Flash Drive plugged in and see if it loads when the pc fully is loaded.

4. Goto the Control Panel> System > Hardware > Device Manager. Look for your drive in the list of Disk Drives. Pick it and then pick the Action Menu and Scan for hardware changes. If the Flash Drive is working properly you should not see any errors. You should also be able to see the drive in explorer.

5. If you still do not see the Flash Drive in explorer but you do see it in Device Manager, right click it in Device Manger and unstall it and reboot and let windows search and reinstall the device drives.

Good luck and post back.

Jun 01, 2011 | SanDisk Cruzer Micro 8GB USB 2.0 Flash...

1 Answer

I used this memory stick on my old PC at home and it was wrking okay. When i put it into the usb port it showed up ad removable E. Now I have upgraded my pc to a laptop it doesent recognise the stick....


I assume when you say "memory stick" that you mean a USB memory stick rather than a Sony memory stick.

You should try it in another USB port (if ther is one on your laptop). If that doesn't work, then try it in another PC - if it doesn't work in another PC either, then it is likely that the memory device is at fault, otherwise. If it works fine on another PC, then it is likely that it is the USB port on your new laptop that is at fault in some manner.

If you have another USB device you can use (anything will do - a mouse, webcam, etc), try it in the port you tried the memory stick in. If nothing happens, then in all likeleyhood, the USB port is at fault. If the other device works, then it is probably the USB memory device that is faulty.

If the device works in another PC, try reformatting it as FAT file system on that PC, and see if you can then see it in your new laptop.

Oct 21, 2010 | Office Equipment & Supplies

1 Answer

All of a sudden one day, non of the 3 USB ports on my Toshiba #A135-S2276 notebook works anymore. When I plug in a memory stick or a printer, It will show error message as "One of the USB devices...


Try disconnecting all external devices and reboot your laptop.
You must have all USB devices disconnected, memory stick, USB mouse or keyboard, Hard drives, flash cards ect.
After a reboot check your device manager for flags or exclamation marks and remove if present.
Again, re-boot your laptop and check your device manager.
Ounce you have cleared all marks from device manager and all is clear,
plugin your first USB device and check operation.
Please check your equipment manual for details on what USB ports and speeds are available for your required devices.
Hope this works for you.
Please rate ASAP
Thanks

Dec 31, 2009 | Office Equipment & Supplies

1 Answer

My in cd has stopped working on my new laptop its advised me to come to this site to fix the issue


do an unistall and see if it refinds it ....
go to control panel
Device Manager
find it and uninstall
if your CD drive is good it will find and reinstall it
LB

Sep 21, 2008 | Medion MD 40812 Notebook

2 Answers

Acer Travelmate 3200 usb dont work


this may help - or not..

http://support.microsoft.com/?kbid=310575

If you have damaged the USB chip on the motherboard, you may be able to disable it in the BIOS. Then when you install your PCMCIA card it may work...

USB is not as tolerant of short circuits as RS232. I know I managed to destroy one of the ports on my m/b.! Using a Hoover may not be a good idea.

Apr 10, 2008 | Acer TravelMate 2300 Notebook

2 Answers

Usb ports not picking up memory stick


Is it just Memory Stick, or everything that you plug into USB?
Try following:
  1. plug in other USB device into ports
  2. if it does not detect any USB device on any port on your computer
  3. if both front and back USB do not work it may be taht USB is turned off in BIOS, or USB driver is corupted
  4. If you have front USBs and they just do not work there is wire connecting them to the motherboard since it may be loose, if connection is OK than they are dead.
  5. If just back USB do not work than they are dead>

Jan 30, 2008 | Computers & Internet

4 Answers

Driver for flash memory card for windows vista


Here is the solution for pen drive (you are must to have got acces to
Windows XP installed drive):
- copy usbstor.inf and usbstor.sys placed in WinXP folders (Windows\INF and
Windows\system32\drivers) on the some location on your disk.
- plug in device with Vista running
- when it is not recognized place to location where you saved these two
files above
- when you vista recognize mass storage device you will get information
about inproper INF section, and the second device will be unknown in your
device manager
- try to actualize driver for unknown device and point Vista to find driver
into your c:\windowsvistadir\ [x] with subdirectories

This problem may be because u have enable some security on ur memory stick if so try this driver
http://esupport.sony.com/US/perl/swu-download.pl?&upd_id=2159&SMB=YES

or you can also try this driver

http://www.developerfood.com/sony-ericsson-w850i-usb-drivers-for-memory-stick/microsoft-public-windows-vista-music-pictures-video/452f8fe9-82ee-47c2-ad6e-f2f3eccb6748/article.aspx

Nov 16, 2007 | Electronics - Others

Not finding what you are looking for?
Computers & Internet Logo

Related Topics:

925 people viewed this question

Ask a Question

Usually answered in minutes!

Top Computers & Internet Experts

Les Dickinson
Les Dickinson

Level 3 Expert

18424 Answers

Doctor PC
Doctor PC

Level 3 Expert

7733 Answers

David Payne
David Payne

Level 3 Expert

14162 Answers

Are you a Computer and Internet Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides

Loading...