Unrecognized USB device, device code Malfunctioned error (43)

Similar Questions

• Satellite A100-233 - error that unrecognized USB device

  I have a problem with my USB ports, they where working fine but all of a sudden they start gives me error that unrecognized usb device. I tried to reinstall XP but still the same.

  Can someone give my solution to this problem?.

  Hello

  You have yellow exclamation marks in Device Manager?
  I had a similar problem with the USB ports a few years ago. I removed the ports in Device Manager and reboot the laptop. The USB ports will recognize again.
  Furthermore, I reinstalled the latest chipset driver and everything worked well.

  The latest chipset driver download on the Toshiba site:
  http://EU.computers.Toshiba-Europe.com-online decision-making supported Downloads & => Download drivers

  Good luck! :)

• "unrecognized usb device": error message every time that a usb device is plugged into one of the usb ports

  "unrecognized usb device": error message every time that a usb device is plugged into one of the usb ports

  1. my laptop - acer aspire 5030 - has been having this problem for the last five months.

  2. I tried everything including changing service pack, as we have xp professional, he has recently upgraded to vista business 32-bit with service pack 1.

  3 tried all the methods start the laptop after a few hours, remove the battery, press the power button for half a minute, and so on.

  4. I finally he formatted a couple of times, but the problem is not.

  5. later, I improved the professional system of vista and installed the latest security patches, but the problem remains

  6. now, I started to update its drivers, although the device is identified to be connected, but is not recognized. "the error message" not recognized usb device "appears. I try to reinstall the drivers or upgrade of drivers, it does not. It displays the message "the drivers for this device are to this day.

  7. initially, the connection of the device, the drivers are installed but still the device does not show in Explorer.

  8. I tried to change some registry values by merging a regedit file in the registry - for display devices that are not present; but still, it has failed.

  9. I then tried to delete the file infcache1.inf in c:\windows\system32\inf, but the problem persists.

  10. Subsequently, I tried to create another registry entry to "disable selective suspend" in HKEY_LOCAL_MACHINE\System\CurrentControlSet\Services\USB by adding DWORD and assigning a binary value of 1.

  11. I tried later also to uninstall all the system devices including USB controllers, drives and the storage controllers, who must still without success.

  12. I tried to see if the drivers in safe mode, which they did not.

  13. I tried to delete the following registry entries =

  HKEY_LOCAL_MACHINES\System\CurrentControlSet\Enum | USB PORT; HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Class\ {4D36E967-E325-11CE-BFCI-08002BE10318 & HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Class\ {4D36E967-E325-11CE-BFCI-08002BE10200.  The computer does not have alow it.

  14. the BIOS indicates device pnp "disabled", which I also look for the BIOS settings, which do not allow me to change to change existing ones.

  15. I have not found the WINDOWS\SYSTEM32\drivers\USBSTOR file. SYS in my driver store. This affects the system?

  16. I also contacted manufacturers pnp devices that provided me with most recent and versions compatible drivers for my devices - namely an apple ipod & Seagate external HARD drive - but even after that the drivers are installed properly and the system rebooted the problem remains. Is this something to do with the updated playing driver registry entries does not after the update? OR is what registry entries are configured to only read the entries at the time of the installation of the OS?

  17. I also contacted local sellers who have suggested to me to change the "motherboard". This will help as a last resort?

  18. in the meantime I had also installed other operating systems to Linux - Fedora and Ubuntu; Full Windows XP - Home & Professional and Vista Edition. All these have been installed successfully but do not solve the problem of usb.

  19. I have also raised the original HARD disk & replaced by another HARD disk. also checked the power of all ihee and ehee usb ports to be at least 5 V. I also disabled the automatic deactivation of devices usb by the system. physical contact, ports and connecting cable is fine. the distribution of power is set at 10% for the ihee ports and 20% for ports ehee, which is what is should be the physical output is also close to 5V for all ports connected.

  20. all professional (hardware or software) should any solution for the problem of the usb ports on my laptop?

  Something that you haven't tried:

  How to fix USB device not recognized in Windows

  http://www.online-tech-tips.com/computer-tips/USB-device-not-recognized/

  I hope I could help

• Booklet - USB device not recognized error message

  Hello

  I have a workaround for this problem that occasionally occurs. It's just to reconnect the USB hub (as recommended by Windows). I was wondering if anyone knows why this happens and how to fix it. The error is: -.

  "Unrecognized USB device. One of the USB devices attached to this computer has malfunctioned and windows does not recognize.

  Roob (2 ports) USB hubs - unused Port, unknown device.

  Recommendation: try to re-connect. If Windows does still not it, replace the device. "

  I can't wait to hear back on your part.
  Kind regards
  Julia.

  Hello Julia

  It is always advantageous to mention which model you have exactly. Of course the external device is not correctly recognized. Check if there is a driver that must be installed before you can use it properly.

• Cannot use mobile mouse 3500 "unrecognized usb device".

  Original title: mobile mouse 3500

  Mobile mouse 3500 has malfunctioned. "unrecognized usb device". This has happened once before. It seemed to correct itself when my computer is doing a weekly update. I did an update manually, but the error has not corrected itself. This mouse is only a few months old.

  Hello

  What operating system do you use?

  Step 1: Try to run the fix it tool to the article below and check.
  Hardware devices do not work or are not detected in Windows
  http://support.Microsoft.com/mats/hardware_device_problems/

  Step 2: Update the driver for this device using the audit and the Device Manager.
  Reference: http://windows.microsoft.com/en-us/windows-vista/Update-a-driver-for-hardware-that-isn ' t-work properly

  Step 3: Uninstall and reinstall the driver and the software for this device.
  Reference:
  http://Windows.Microsoft.com/en-us/Windows-Vista/uninstall-or-change-a-program
  http://www.Microsoft.com/hardware/en-us/downloads

  I hope this helps.

• Bluetooth mouse stopped working & USB device not recognized error

  Laptop using Windows Vista

  I was using my bluetooth mouse when I plugged my mobile phone (via USB cable) in charge. I have done this before w/o a problem (perhaps in another USB Port, now that I think about it) but I did this time and I instantly lost the ability to use my bluetooth mouse and the "USB device not recognized" bubble popped up. Now, this window pops up almost every 10 seconds even with disconnected USB mobile phone.

  I went to bluetooth devices trying to pair my mouse w / new laptop and I can not. It's not show my mouse and when I go to Bluetooth settings and try checking the box (and pressing OK) under the discovery that reads "Allow Bluetooth devices to find this computer" it gives me an error saying that this is impossible.

  Help!

  The manufacturer of my hardware (bluetooth mouse) will not be able to explain why this struck dead window device unrecognized USB is coming non-stop. Above tutorials did not help at all.

  Hey wsdp

  "The manufacturer of my hardware (bluetooth mouse) will not be able to explain why this unrecognized USB device breath."

  ask them

  Walter, the time zone traveller

• Unrecognized USB device... need help with the SFC results!

  I followed several channels of the problems that were associated with the popup error in Vista that says "Unrecognized USB device"... that I'm having the same problem.

  I tried to uninstall and reinstall my USB drivers with nothing working.  It was recommended that SFC.exe in the message area of C:.  I did and it came up with error messages that could not be repaired in the CFS program.  What should I do to fix these problems?  I posted the report itself below, showing that areas that have problems.

  Any help would be appreciated!

  ] Beginning Verify and Repair transaction
  2010-02-15 16:28:48, info CSI 00000124 [SR] cannot repair the military record [l:20 {10}] "tcpmon.ini" Microsoft-Windows-printing-StandardPortMonitor-TCPMonINI, Version = 6.0.6001.18000, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, type neutral, TypeName neutral, neutral to the public key in the store, hash mismatch "

  2010-02-15 16:28:50, info CSI 00000126 [SR] cannot repair the military record [l:20 {10}] "tcpmon.ini" Microsoft-Windows-printing-StandardPortMonitor-TCPMonINI, Version = 6.0.6001.18000, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, type neutral, TypeName neutral, neutral to the public key in the store, hash mismatch "

  2010-02-15 16:28:50, info CSI 00000127 [SR] this element is referenced by [l:160 {80}] "' Package_30_for_KB936330 ~ 31bf3856ad364e35 ~ x 86 ~ ~ 6.0.1.18000.936330 - 187_neutral_GDR" "

  2010-02-15 16:28:50, CSI Info 0000012a [SR] could not reproject corrupted file [ml:520 {260}, l:46 {23}] '------? \C:\Windows\System32"\[l:20{10}]"TCPMon.ini '; source file in the store is also corrupted

  2010-02-15 16:28:51, CSI Info 0000012 c [SR] verification complete

  ] Beginning Verify and Repair transaction

  2010-02-15 16:32:13, Info CSI 00000199 [SR] cannot repair the military record [l:20 {10}] "tcpmon.ini" Microsoft-Windows-printing-StandardPortMonitor-TCPMonINI, Version = 6.0.6001.18000, pA = PROCESSOR_ARCHITECTURE_INTEL (0), the Culture neutral, VersionScope is 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, type neutral, TypeName neutral, neutral to the public key in the store, hash mismatch "

  2010-02-15 16:32:13, CSI Info 0000019b [SR] cannot repair the military record [l:20 {10}] "tcpmon.ini" Microsoft-Windows-printing-StandardPortMonitor-TCPMonINI, Version = 6.0.6001.18000, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, type neutral, TypeName neutral, neutral to the public key in the store, hash mismatch "

  2010-02-15 16:32:13, CSI Info 0000019 c [SR] this element is referenced by [l:160 {80}] "' Package_30_for_KB936330 ~ 31bf3856ad364e35 ~ x 86 ~ ~ 6.0.1.18000.936330 - 187_neutral_GDR" "

  2010-02-15 16:32:13, Info CSI 0000019f [SR] could not reproject corrupted file [ml:520 {260}, l:46 {23}] '------? \C:\Windows\System32"\[l:20{10}]"TCPMon.ini '; source file in the store is also corrupted

  2010-02-15 16:32:13, 000001 has 1 CSI Info [SR] full repair

  2010-02-15 16:32:13, 000001 has 2 CSI Info [SR] validation transaction

  2010-02-15 16:32:13, 000001 6 CSI Info [SR] a check and complete repair operation. All of the files and registry keys listed in this operation were repaired successfully

  2010-02-15 18:31:23, info CSI 00000006 [SR] components check 100 (0 x 00000064)

  ] Beginning Verify and Repair transaction

  2010-02-15 18:35:11, info CSI 00000124 [SR] cannot repair the military record [l:20 {10}] "tcpmon.ini" Microsoft-Windows-printing-StandardPortMonitor-TCPMonINI, Version = 6.0.6001.18000, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, type neutral, TypeName neutral, neutral to the public key in the store, hash mismatch "

  2010-02-15 18:35:12, Info CSI 00000126 [SR] cannot repair the military record [l:20 {10}] "tcpmon.ini" Microsoft-Windows-printing-StandardPortMonitor-TCPMonINI, Version = 6.0.6001.18000, pA = PROCESSOR_ARCHITECTURE_INTEL (0), the Culture neutral, VersionScope is 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, type neutral, TypeName neutral, neutral to the public key in the store, hash mismatch "

  2010-02-15 18:35:12, Info CSI 00000127 [SR] this element is referenced by [l:160 {80}] "' Package_30_for_KB936330 ~ 31bf3856ad364e35 ~ x 86 ~ ~ 6.0.1.18000.936330 - 187_neutral_GDR" "

  2010-02-15 18:35:12, CSI Info 0000012a [SR] could not reproject corrupted file [ml:520 {260}, l:46 {23}] '------? \C:\Windows\System32"\[l:20{10}]"TCPMon.ini '; source file in the store is also corrupted

  2010-02-15 18:35:13, CSI Info 0000012 c [SR] verification complete

  ] Beginning Verify and Repair transaction

  2010-02-15 18:37:58, info CSI 00000199 [SR] cannot repair the military record [l:20 {10}] "tcpmon.ini" Microsoft-Windows-printing-StandardPortMonitor-TCPMonINI, Version = 6.0.6001.18000, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, type neutral, TypeName neutral, neutral to the public key in the store, hash mismatch "

  2010-02-15 18:37:58, CSI Info 0000019b [SR] cannot repair the military record [l:20 {10}] "tcpmon.ini" Microsoft-Windows-printing-StandardPortMonitor-TCPMonINI, Version = 6.0.6001.18000, pA = PROCESSOR_ARCHITECTURE_INTEL (0), Culture neutral, VersionScope = 1 nonSxS, PublicKeyToken = {l:8 b:31bf3856ad364e35}, type neutral, TypeName neutral, neutral to the public key in the store, hash mismatch "

  2010-02-15 18:37:58, CSI Info 0000019 c [SR] this element is referenced by [l:160 {80}] "' Package_30_for_KB936330 ~ 31bf3856ad364e35 ~ x 86 ~ ~ 6.0.1.18000.936330 - 187_neutral_GDR" "

  2010-02-15 18:37:58, Info CSI 0000019f [SR] could not reproject corrupted file [ml:520 {260}, l:46 {23}] '------? \C:\Windows\System32"\[l:20{10}]"TCPMon.ini '; source file in the store is also corrupted
  2010-02-15 18:37:58, 000001 has 1 CSI Info [SR] full repair

  Hi CapsFanQ,

  To repair the system corrupted files on the computer that was not fixed by SFC scan, an upgrade in place might have to accomplish.

  Error message when you try to install Windows Vista Service Pack 2: "one or more system components that require the service pack are missing."

  http://support.Microsoft.com/default.aspx/KB/968279

  (See option 1 in the link)

  Note:  Before you perform an upgrade in-place, you must be prepared for the worst scenarios that led to your existing data on your computer being deleted. Make sure that you back up personal data to disks or other storage devices before performing an upgrade on the spot. To perform an upgrade in-place, follow these steps.

  Until you try to upgrade on the spot, I suggest you follow the steps mentioned below to fix USB:

  Step 1: Run the fixit provided in the link below.

  http://Windows.Microsoft.com/en-us/Windows-Vista/tips-for-solving-problems-with-USB-devices

  If the problem persists,

  Step 2: Connect the device to a different USB port and test and also to connect the device to another computer to eliminate the problem of USB device.

   

  If the problem persists,

  Step 3: Reinstall the USB controllers.
  

  First of all, please disconnect all USB devices and then perform the following steps:

  1. click on 'Start', type device manager in the search bar and press "Enter." If necessary, click on continue.

  2. in Device Manager, double-click to expand the "USB Bus controllers", right-click on the "host controller", click "Uninstall" and click "OK".

  3. Repeat step 2 to uninstall all items under 'USB Bus controllers'.

   

  Then, restart your computer and Windows 7 will automatically reinstall all USB controllers.

  You can contact the manufacturer of the USB device for known problems

  Step 4: Update the driver of the motherboard (Chip set drivers) to the latest version.

  Note: Please check with the manufacturer of the motherboard before installing the driver.

  Thank you, and in what concerns:

  Ajay K

  Microsoft Answers Support Engineer

  Visit our Microsoft answers feedback Forum and let us know what you think.

• IPod Classic (80 GB) "unrecognized USB device" running windows 7

  I've recently upgraded to a new laptop (acer aspire 5738G) running windows 7. I managed to transfer my itunes through library and that you have installed itunes (x 64) that works well. When I plug my ipod classic (80 GB) on a usb port, I get a message saying "unrecognized usb device". I managed to make it work once, but when I did, I got an error understood saying "this drive could run faster" or something in that sense. I tried other usb devices and all seem to work well, so I guess that's the ipod drivers or a compatibility issue with 7 and itunes. I uninstalled and reinstalled itunes, have reinstalled the usb drivers and have browsed the net for a fix but wo's me again! I waited patiently a hotfix from microsoft or apple, but still nothing. It seems that there is a great problem of the spread. Does anyone have any ideas as what was once a small annoying problem turns into a right royal pain in the a$ $. Thanks in advance!

  I also have the same problem is "USB not recognized" and I have the old IPOD classic (20 GB).

  The problem started when I upgraded my home pc to Windows 7 Pro 32-bit of Windows Vista. My iphone 3gs is currently recognized properly but not the ipod 20 GB on the same iTunes 9.0.2. Device Manager reports the 20 GB ipod as "unknown device".

  My computer is a HP Pavilion Slimline s3620f. Almost tried everything:
  -reboot several times
  -Reinstall itunes several times
  -restart the service itunes several times
  -Reconnect the ipod several times
  -tried the front and back of the usb ports
  -deleted the Sentinel file under c:/users //musci/itunes/I've found solution on another forum

  ... still nada, zit, ala!

  Update: I've found a workaround. Fortunately, my ipod classic cable is a cable in there provided with firewire in addition to the usb cable. Since my home pc has firewire port, Windows 7 now recognizes the classic ipod through this port, have a drive letter and itunes works on it as well.

• HP f335 on computer error message "unrecognized usb device".

  Having problems installing HP deskjet f335 all-in-one. The printer has worked fine for years until that one day I received an error message from windows 8.1 indicating this usb device is not recognized. I installed Hp and MS software troubleshooting and computer ultimately gives same error. I reinstalled the printer software. I bought a new USB shorter. I worked through several stages of various troubleshooting offered on the Hp support site. The printer features all work correctly when used with buttons on the printer itself. It will not communicate with any computer. I tried to install on vista desktop as well as windows 8.0 and 8.1 on two other laptops with the same conclusion. Is there a solution? I'd appreciate any help. Thank you

  Thank you for responding!

  Try this following troubleshooting guide:

  Windows: "Device Setup has not finished" or the "Unknown device" Message appears on the computer when the USB Installation

  If troubleshooting doesn't help not solve your problem, then I would say call the HP Technical Support to see all the other possibilities for you. If you call in North America, the number is 1-800-474-6836 and for all other regions: click here.

  Happy Monday

• Tecra S10 - unrecognized Usb device

  Whenever I plug the mouse usb Tecra S10 - 11A I get the message "unrecognized (or due to a malfunction) Usb device". Then, after several times of rehearsals to plug / plug everything is OK. But after each reboot, I must repeat plug/plug in mouse for several times.

  Now, I'm on Vista, but it is even on Windows 7 or XP.

  Is it possible to solve the problem?

  Thank you!

  Hi gordan84,

  Have you installed a 3rd party software/driver for the external mouse? If Yes, you should remove it.

  This happens with other USB devices like printer too?

  Maybe a BIOS update could be useful, you can download it on the Toshiba site.

• Vista message - unrecognized USB device

  Hello

  I get an error message "USB device not recognized" of Windows Vista.
  It keeps repeat sporadically.
  The problem is that I don't have any device USB attach or connect to my computer.

  Sometimes plugged in my Flash USB key device to file certain documents on my drive hard, but I immediately unplugged the unit once the task is completed.

  I used to have a printer Lexmark 1290 plug to my computer, but as it worked very well on Vista, I decided to unplug and remove the device in my printer Manager.

  I installed the latest Windows Vista Update, BIOS update, and all the drivers, but I always saw the messages.

  Does anyone have an idea of what could be my problem?

  Thank you

  Hi aladino00,

  It would be interesting to know what laptop you have and if you run factory settings (preinstalled Toshiba BONE) or not.
  You can add this information, please?

  To be honest, I also don t know why you get this error message but can you please try to remove all the USB ports on the Device Manager, then restart the laptop?

• Unrecognized USB device if I use more than four devices. WTF.

  Hey,.

  I currently use a 32-bit version of Windows Vista.  I have six slots USB which is given to me.  I use four of them at all times to my keyboard, mouse, WiFi adapter and the headset.
  Whenever I'm trying to plug a fifth device I get the error: USB device not recognized.  However if I unplug any other device, the new device will work perfectly.  And then if I try to re - connect the deleted device back in, it will not work until I have remove the fifth device.
  WTF?

  It is certainly not a question of power that I have decent food.  In addition, why inlcude 6 USB slots if there are only 4 can work at the same time?  I tried Googling for a solution and learned that a computer must be able to handle up to 127 devices, anyway.

  What can I do to fix this error?  Do I have a virus or something?

  Hello

  Check with support of the manufacturer of the system (motherboard for customized systems manufacturer) and ask for their
  Forums about known issues. Look for the updates the BIOS, chipset of low level drivers, and others
  drivers.

  There could be a power problem that the USB interface can supply only so many devices at a time. If
  power is part of the question, then external, powered USB Hub will help.

  -------------------------------------------------------------------------------

  Follow these steps to remove corruption and missing/damaged file system repair or replacement.

  Run DiskCleanup - start - all programs - Accessories - System Tools - Disk Cleanup

  Start - type in the search box - find command top - RIGHT CLICK – RUN AS ADMIN

  sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
  generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Then, run checkdisk - schedule it to run at next boot, then apply OK your way out, then restart.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  -----------------------------------------------

  Then lets refresh the USB stack

  Control the click Control Panel - Device Manager - no matter where in the box of white/white - then the VIEW - see the
  Devices disabled - look around (with the exception of USB controllers) for your devices (can have
  zero or more than one) and top - right click UNINSTALL.

  Control Panel - right CLICK on EVERYTHING - Serial USB controllers - Device Manager and UNINSTALL
  all except the category itself - REBOOT - it refreshes the drive and battery USB

  This KB shows XP how to and the method of Vista is identical
  http://support.Microsoft.com/kb/310575

  This is a utility to help you, but do 1 above.

  USBDeview is a small utility that lists all USB devices currently connected to your computer, thus
  as all USB devices that you previously used. Run Options and check the 1st three choices to see to it there
  Is there.

  http://www.NirSoft.NET/utils/usb_devices_view.html

  You must remove all instances of the devices and restart.

  ----------------------------------------------

  If necessary try these two:

  Tips for solving problems of USB devices - and a Mr Fixit
  http://windowshelp.Microsoft.com/Windows/en-us/help/c39bd203-f729-47a4-8351-83291e13c8a81033.mspx#EGB

  Hardware devices not detected or not working - Mr. Fixit
  http://support.Microsoft.com/GP/hardware_device_problems

  I hope this helps and happy holidays!

  Rob Brown - Microsoft MVP<- profile="" -="" windows="" expert="" -="" consumer="" :="" bicycle=""><- mark="" twain="" said="" it="">

• UNRECOGNIZED USB DEVICE

  whenever I plug in or UN plug or anything I do, I got error msg this USB device not recognized frequently for these last two days.

  My laptop is Sony Vaio CS 17 with Windows VISTA Home Premium

  Please aswaer

  Do you have anything plugged USB? Try this:

  UNINSTALL ALL USB ASSOCIATED ENTRIES IN THE DEVICE (COOL CACHE) MANAGER

  1. click on START
  2. right click "Computer" and select "Properties".
  3. on the left side, click on Device Manager.
  4. expand the 'USB Bus controllers' category
  5. right click and uninstall all THE references listed
  6. completely shut down your computer, unplug the power adapter (charger) out of the wall, turn the laptop and remove the battery. Let rest for about 5-6 min. This gives time for the memory cache to completely empty (a bit like clean which is in temporary memory)
  7 turn on the laptop

  Let us know what happens.

• USB device not recognized error

  I am running Windows 7 on an acer 4810 t
  My computer keeps telling me that I have an unknown USB device.
  In Device Manager, the device will appear and then disappear every few seconds.
  The only USB device I have ever used with this PC is an external mouse.
  Initially, the error occurred when I had Vista and I assumed 7 upgrade fix it - no luck.
  Until I disabled all notifications error that it made my laptop unusable.
  Is it possible to fix this problem without having to reinstall the system.  Please?

  Hello

  References to Vista also apply to Windows 7.

  There may be devices USB internal connection such as keyboards, cameras, card readers, of fingerprints fingerprints devces,.
  and others. All that you have people don't seem to have problems? This could be a hardware problem. What do you see
  This is when he jumps up or at least which category in the Device Manager it appears?

  Follow these steps to remove corruption and missing/damaged file system repair or replacement.

  Run DiskCleanup - start - all programs - Accessories - System Tools - Disk Cleanup

  Start - type in the search box - find command top - RIGHT CLICK – RUN AS ADMIN

  sfc/scannow

  How to analyze the log file entries that the Microsoft Windows Resource Checker (SFC.exe) program
  generates in Windows Vista cbs.log
  http://support.Microsoft.com/kb/928228

  Then, run checkdisk - schedule it to run at next boot, then apply OK your way out, then restart.

  How to run the check disk at startup in Vista
  http://www.Vistax64.com/tutorials/67612-check-disk-Chkdsk.html

  -----------------------------------------------

  Then lets refresh the USB stack

  Control Panel - right CLICK on EVERYTHING - Serial USB controllers - Device Manager and UNINSTALL
  all except the category itself - REBOOT - it refreshes the drive and battery USB

  This KB shows XP how to and the method of Vista is identical
  http://support.Microsoft.com/kb/310575

  After having updated the USB stack:

  USBDeview is a small utility that lists all USB devices currently connected to your computer, as well as all
  USB devices that you previously used. Run Options and check the 1st three choices to see if one is there.
  This might help determine the device that is real or not.
  http://www.NirSoft.NET/utils/usb_devices_view.html

  ----------------------------------------------

  If necessary try these two:

  Tips for solving problems of USB devices - and a Mr Fixit
  http://windowshelp.Microsoft.com/Windows/en-us/help/c39bd203-f729-47a4-8351-83291e13c8a81033.mspx#EGB

  Hardware devices not detected or not working - Mr. Fixit
  http://support.Microsoft.com/GP/hardware_device_problems

  I hope this helps.

  Rob - bicycle - Mark Twain said it is good.

• Windows is unable to recognize the device, one of the connected usb device has malfunctioned

  in my pc it shows the error when I connect a usb device is something like this perhaps datacard or USB key via a M/F, else if usb cable connected directly connected to the pc port it works fine... even changed the cable twice there is no cable fault

  It would seem that the cables tried maybe not until the correct USB connection plug. If you test this, according to the post Michael75951, and it still does not work, perhaps he could confirm bad cable(s.)