Non-existent devices USB not recognized

Similar Questions

• Device USB not recognized (malfunction)

  I went on my external hard drive and an error message came - USB not recognized - device due to a malfunction. I tried switching off all voltage and turn support but still the same voltage. Then I went to print something and the same message came. However, I used my printer today without any problem. I don't know what happened. Advice please? Thank you very much. Aide-de-camp

  Hello ~ thanks for the reply.

  Just to say that I read somewhere switch all switch off and leave it for half an hour - then turn on everthing. Miraculously - it worked!

• Device USB not recognized - device connected USB has malfunctioned and Windows does not recognize it

  I have a HP Pavilion dv4 laptop running Windows 7 Home Edition Premium and the USB ports worked well for a HP deskjet printer and an older Casio digital camera. Then one day, the laptop decided not to recognize the Casio digital camera and gave the error message "USB device not recognized" and also indicated that the device connected to the computer has malfunctioned. This prompted me to buy a new digital camera Canon. Well, a new camera has not fixed the problem. Now, anything that is connected to one of the 2 ports USB will not be recognized by my laptop. Help!  I am at a loss to understand this.  I tried using Microsoft suggested below:

  Suggestion 1: the problem with USB devices, uninstall and reinstall all USB controllers. This allows controllers to recover the port USB of his condition does not respond.
  USB controllers represent the USB ports in Device Manager.

  a. Click Start, type Manager of devices in the search box of start and press ENTER.
  b. expand Bus USB controllers.
  Note: you may scroll through the list to find this point.
  c. the first USB controller under Bus USB controllers right click and then click on uninstall to remove it.
  d. Repeat steps above for each controller USB is listed under Bus USB controllers.
  e. restart the computer. After the computer starts, Windows will automatically check for changes on the hardware and reinstall all USB controllers that you uninstalled.
  f. check the USB device to see if it works.

  This has not fixed the problem.  Then the Device Manager, I tried to update the drivers on all the USB controllers and root hubs. While some may have received software updates downloaded, it still has not corrected the problem of unrecognized USB device after the computer is restarted.  I hope that someone knows the solution to this situation and can pass it on to me. Thanks for reading and any help display.

  Read previous messages revealed the solution for USB devices not recognized on my HP Pavilion as well as several other laptop models.  Shut down the computer and remove the battery and wait for about 15 minutes. Reinstall the battery and restart the computer.  USB ports are working to download pictures from my digital camera from Canon and charging a cell phone, etc...   I hope it helps others with this problem!

• Discs non powered hub USB not recognized by Win7

  I have a HP dv7 works Win7. An external hub in which is connected to a powered external disc and three-disc powered only by USB.

  Until the last Windows Update or so all readers were recognized and listed in Windows Explorer with the appropriate drive letters. Now, as well on the original hub, I had (Staples brand) and a new, I bought the hub of thought had failed (plugable 7 port USB2-HUB-AG7), the player plugged into the hub continues to be recognized by Win7, but none of the non-powered drives are.

  If I unplug the hub and plug the 4 external drives into the same USB port on the HP computer previously used by the hub, they are all recognized by the appropriate drive letters and all files are visible.

  This sequence tells me:

  1. the USB port on my laptop isn't the problem: any connected external drive port is correctly read by Win7.

  2. the hub is not the problem: the probability of a former pole and a new hub failed in exactly the same way is small.

  3. There is something different about external drives with independent power supply and USB-powered drives it is relevant.

  Ideas/suggestions?

  Hello Nora,.

  Thank you for giving us the opportunity to help you.

  I would be grateful if you can provide us with the following information to help us better understand the issue.

  1. Do you remember the number of Windows update that you installed before the show?
  2. Have you tried plugging the hub in all other ports? If yes was the result even?
  3. Have you tried to use the hub on another computer? If yes was the same result, and if not please try to do and check out the State.
  4. What is the make and model no HUB?

  According to your description, it seems that any external device working properly as well as ports. As you mentioned that the question remains her even after plugging the new hub means there may be a chance that the necessary drivers for the hub work is missing or damaged. So I would ask update you the drivers and see if it helps.

  Update drivers: recommended links

  http://Windows.Microsoft.com/en-us/Windows/update-drivers-recommended-links#update-drivers-recommended-links=Windows-7

  Automatically get recommended drivers and updates for your hardware

  http://Windows.Microsoft.com/en-in/Windows7/automatically-get-recommended-drivers-and-updates-for-your-hardware

  Get back to us with all the necessary information and the result of the proposed suggestion. We will be happy to help you if necessary.

  Kind regards.

• device - device USB not recognized

  I have an external hard drive, but my laptop does not recognize it always. the message that appears reads as follows:

  One of the USB devices attached to this computer has malfunctioned and Windows does not recognize it

  Usually when I start my laptop the morning he is there for me to use, but every time I have to remove and attach it again, it is not recongised.

  Hello

  Follow the steps above and if that doesn't help not follow them steps below to uninstall and reinstall the USB controllers.

  (a) click Start and then click Control Panel.

  (b) click System and Maintenance, click System, and then click Device Manager.

  Note: If the control panel is in Classic view, double-click System and then click on Device Manager.

  If you are prompted for an administrator password or a confirmation, type the password, or click on allow.

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

  (d) check that if at all, there is an exclamation point on the pilot, it suggests problems with the installed driver.

  (e) repeat step 2 to uninstall all items under 'USB Bus controllers'.

  (f) then restart your computer and Windows 7 will automatically reinstall all USB controllers.

• Why am I suddenly "USB not recognized, one of the devices USB has malfunctioned and Windows does not recognize"

  Hi all. If anyone out there in Cyber Land can solve this problem for me so I've personally you will issue an eight-pack of ice-cold beer (or a bottle of wine for the ladies lol)...

  I'll try not to waffle too guys, so here's...

  Right my PC running Windows XP. I also have itunes installed on my PC (I have an iphone 4). Upward until yesterday my iphone and itunes were working well, (once I plugged my iphone in the itunes USB port recognised that my iphone was plugged and synchronization was fine etc.).

  But now when I plug my iphone to PC to sync with itunes, I get a pop up box on the lower right part of the screen that reads... "USB not recognized one of the USB devices has malfunctioned, and Windows does not recognize."

  After visiting about 5 different sites now "Ways to solve this problem", believe it or not, I still have the problem bloody! :(

  A site proposed shutdown PC and unplug it from the power supply, then plug it back start-up and back... this as did not work!
  The other they say that I should go to Device Manager, uninstall all the USBs then restart... it did not work either.
  Tried a system restore
  Tried to reinstall itunes

  When I check the names USB in Device Manager, there is one who reads unknown device. I am literally pulling what's left of my hair now. I tried to solve this problem for almost 2 days now and still no joy. That's why no matter what input you guys would be very appreciated. I'm no PC Wizard, so please, don't think you're patronizing me if you break down things step by step for me.

  Thank you comrades, cordially, Freddy frustrated. :)

  Another said I should go to Device Manager, uninstall all the USBs and restart.

  Usually, this works... but can be very dangerous, unless you have a PS/2 keyboard.

  I also assume that you have tried all other USB ports on the computer. tried a verified USB device (for example, a flash drive) in the USB usually when you plug in your iPhone. and I tried your iPhone in another computer (I know it's rare for an error message Windows really means what he says, but sometimes the material lacks).

  Is the charge of the iPhone when it is connected to the USB port (I don't think)?  This happened to me recently, but a reboot fixed it.  I guess that that happened to you.

  I guess that you don't see the error messages in Device Manager or you must declare them.

  You can uninstall all USB devices that do not exist as follows:

  • Open a command prompt window (start > run > cmd > OK)
  • Enter the following command and press enter

  Set devmgr_show_nonpresent_devices = 1

  • Start the Device Manager by typing the following in the same command prompt window

  devmgmt.msc

  • In Device Manager, click the view menu and select "Show hidden devices".
  • You should see a category just after "Non-Plug and Play drivers" named "other devices."  Chances are that there will be a big exclamation yellow mark beside it.  When you expand the "other devices" you should see several non identified "USB devices."  Uninstall all this.
  • Reboot (with the iPhone NOT connected).

• USB 2.0 devices are not recognized on Satellite L

  Hello

  All of the usb 2.0 device is not recognized on my laptop.
  I got a message stating that the driver are not installed. I'm looking for the driver on the support site, but could not find them...
  I've updated the bios and chip set utility, but still nothing.

  Any idea?

  Hello

  What model of laptop do you have?
  What operating system do you use?
  Since when you noticed this problem?
  Did you test all USB ports?

  Have you tested with different devices USB ports?

  Please post a little more information.

• The mistake that the USB device is not recognized... Help, please...

  I am trying to connect to Simple external storage drive and once I followed all the steps (only 2) Windows XP gave me a message that the USB device is not recognized or it malfunctioned. I disconnected everything and tried again in another USB port and still had the same error. I know that is not the usb port of my computer because I have it plugged into a port that just worked. I have Windowx XP SP2. Any help on this would be appreciated.

  XP forums:

  http://social.answers.Microsoft.com/forums/en-us/category/WindowsXP

  Link above is for XP Forums.

  There is a list of the different Forums XP to the link above to help you.

  You get the help you need there.

  Here is the Vista Forums.

  See you soon

  Mick Murphy - Microsoft partner

• My USB devices are not recognized, but they have a power

  My USB devices are not recognized, the only ones to be recognized are my mouse and keyboard. Each device is powered (motherboard works fine), but Windows 7 isn't their read (although sometimes I'll get a code 43). I have the latest chipset.

  I tried right click and uninstall each device and rebooted the computer. Nothing has fixed this.

  My external hard drive, ipod and other devices that involve the transfer of data seem to ONLY get power and nothing else.

  It is not material because all my devices work on my laptop. Also my motherboard works fine (it's the 2nd RMA) and it has been tested at the factory to make sure of him.

  I would really appreciate help with this

  Hello

  Please follow the methods.

  Method 1:

  Run the troubleshooter from the link.

  http://Windows.Microsoft.com/en-us/Windows7/open-the-hardware-and-devices-Troubleshooter

   

  Method 2:

  Try to uninstall and reinstall the USB controllers

  a. click the Start button.

  b in the start search box, type devmgmt.msc and press enter

  c. expand Bus USB controllers

  d. right-click on the first USB controllerr under Bus USB controllers and then click Uninstall to remove it. Repeat these steps for the entire USB under Controllers USB Bus controller.

  e. restart the computer. After the computer starts, Windows will automatically check for changes on the hardware and reinstall all USB controllers that you uninstalled.

  I would also ask you to contact the manufacturer of the computer to help.

• USB not recognized on Windows 7

  Hello
  I have a problem. I instaled Windows 7 USB and mouse does not (USB not recognized-pop up on my desk).
  PLS, can you help me to solve this problem?

  Hello

  What model of laptop do you have?
  On the European driver Toshiba Satellite A350 series page I could find the registry patches. I think you should install it!

  In addition you should check the support page of USB devices maybe your Win 7 peripheral USB needs drivers

• USB not recognized of 9237

  I have a new USB-9237 with 9162 carrier, when I plugged the device was not recognized.  NEITHER DAQmx 9.2.1 worm was installed before I plugged it, all I get is green light only flashes on the 9162.  I went the 9237 with a 9239 and this device is recognized.

  Measurement and automation explore worm 4.7.1

  any thoughts or suggestions would be appreciated

  Jesse

  Hello, JENO,.

  The version of the NI 9237 with d - SUB connector is not supported in the chassis USB-9162.  It is because the device uses a different product ID and would need a different firmware, which is not currently supported.  In order to use a NI 9237 module into a USB-9162, you need to use version RJ50, not d - SUB version.

  Kind regards

• HP LaserJet P1102: USB not recognized during installation of HP LaserJet P1102

  I have a Sony Vaio VPCEH computer laptop with Windows 7 and when I run the disk I got with the printer on my laptop, that the installation procedure works in what concerns the section "Install printer Software". When you are prompted to turn on the printer and connect the cable USB to the laptop it says 'USB not recognized '.  I tried all 4 slots USB into my laptop but the USB still appears as an unknown device with an exclamation point in a yellow triangle. I searched internet solutions and tried to uninstall the unknown device in Device Manager and restart the installation with the disc, I also tried clicking on the unknown device driver software update but it says the software driver is up to date and still, it shows as an unknown device and is not recognized. I also tried to uninstall the HP software from the disc on my laptop and that reinstall but nothing has worked. I felt for over 2 weeks now and have not been able to use it because of this problem and I really need for University, so I would be very happy if someone could please give me a solution to this problem

  Hi @Janemaguire,

  Have you tried another USB cable?

  Because the printer is not detected on the Mac, it may be the USB port of the printer.

  What happened when you tried to install the printer on Mac?

  Error messages?

  What is the model Laserjet P1102w?

  Let me know. Thank you.

• Wireless G USB adapt WUSB54GC - peripheral USB not recognized

  I'm guessing that it's version 1, because it is not any version number, written on the back...

  in any case, the adapter is used since December 2008 and had no problems before...

  it suddenly stopped working and gives the 'USB device' ball not recognized on a Vista laptop...

  I tried on another laptop and the result is the same, I tried to reinstall the drivers from the CD and that I got on the linksys website, it still does not work...

  the unit ran his life already?

  As the card is not getting detected and you have tried it on two different machines, it seems that the device is defective.

• Deviice USB not recognized. Help, please.

  So I have this Freecom 500 GB Portable external Hardrive and I have used it for several months now. It worked fine on my laptop and other computers, I'll until recently, when I plug it says: ' "USB device not recognized.". I click on the USB icon and it said: "one of the devices attached to this computer has malfunctioned, and Windows does not it." he has never done this before. In addition, there was a 'recommendation' which suggests I 'try to re-connect. If Windows does still not it, replace the device. " So I tried and tried (reconnection) but it's the same thing. USB NOT RECOGNIZED. I tried on the laptop of others and computers and the same thing happened. I have important documents stored on this hard drive... I don't think that the computer is at fault, rather my hardrive, but I'm not sure. What do you think? And are there ways I could solve this problem?

  Hi Elysem,

  As you have checked the hard disk on other computers and it gives the same error message that means there is a problem with the hard drive so I suggest you contact the manufacturer of the hard drive to get help.

• Peripheral intermittent USB not recognized problem in loop

  Hello

  I have a Dell Precision M6500 laptop in a docking station with a USB keyboard and mouse attached running Win 7 Pro 64 bit.  Most of the time, the machine works fine without any problems, but sometimes, Windows will in this tight where loop every few seconds, it appears the dreaded ball peripheral USB not recognized - even if I have not added/changed and the USB device on the machine.  I tried to disable the device, uninstall the driver, etc, but nothing I do seems to fix the problem.

  Please help because it drives me crazy.

  Thank you

  Robert

  It turns out that Dell thinks it's a hardware problem.  Theyu replaced the docking last week and that made it better for 3 or 4 days, but now he's back.  They will replace the motherboard this week, so we'll see...