USB ports stopped working unexpectedly

Similar Questions

• Satellite P850 - right USB ports stopped working

  I have a new P850 Satellite, after a short period, that the two right usb ports stopped working, I had only a wireless mouse connected to them at the time. Is there a reset for these ports, I tried to uninstall and reinstall, no change.

  Anyone has any ideas.

  > I tried to uninstall and reinstall, no change.
  What have you tried to uninstall or reinstall?

• USB ports stop working after windows 7 updates (April 12, 2011)

  After application of the 12 updates successfully (KB890830, KB2508272, KB2506223, KB250212, KB2508429, KB2507618, KB2509553, KB2503658, KB2506014, KB2491683, KB2511455 and KB2446710), my USB ports stopped working after restart. I get this description of Device Manager: Windows cannot verify the digital signature for the drivers required for this device. A recent hardware or software change might be installed a file that is signed incorrectly or damaged, or maybe it's a malicious software from an unknown source. (Code 52)

  I restored the functionality of USB ports by doing a system restore before installing updates.

  What should I do? Ignore ALL updates future windows 7, which leaves the system vulnerable? Help is appreciated thanks.

  I solved this.

  Device-USB controllers-online standard uninstall online Manager pci improved to (do it twice) usb host controller, and then the scanner hardware change and let the win7 to reinstall the drivers.
  Updates were corrupted somehow the drivers, you need to fix manually.

• All USB ports stopped working Windows 7

  Windows 7 Pro. All USB ports stopped working.  When I plug a usb card, windows makes the sound as it connects and the card gets power (light).  I see the map appear in disk drives in Device Manager.  The player does not display in windows Explorer or disk management.  In Device Manager, it has an exclamation point and says that the device cannot start.

  Strangely, I have a USB keyboard and mouse and they work very well.

  It's just the USB drives and chips and SD cards that are not displayed.

  I have:

  Reinstalled the drivers USB MB

  Flashed the BIOS with the latest version

  Tried to install the older USB drivers

  Tried to let windows find the driver.

  Still does not

  None of this has helped.  I ended up formatting the HD and reinstall windows from dvd.

  This revealed that my USB multicard reader was bad.  When I unplugged the problem disappeared.

• SQosmio G50 - 10 H - one of the usb ports stopped working

  Hello forum,.

  I have a BOUNCING problem with usb ports on my qosmio g50-10 h.
  There are two ports on the right side of the machine and I have 2 self-powered 7 centers of port (usb 2) attached to these.

  Every now and then to stop it from ports and of course all the parts a unregcognised, not found.
  I get error messages saying unregognised device or usb device stopped working or windows stopped device etc.

  Unplug the hub and repluging it ususally actually come back to life.

  any ideas?

  Stafford

  Hello

  Have you tried to connect devices directly to the USB port?
  Try this and see if the USB device is disconnected, as you mentioned that using the external USB hub.

  Generally speaking, it is difficult to say what might cause this
  You could try updating the chipset driver.
  Of course, you should also check the USB port settings, and power management options for economy.

  In device manager-> USB root & hub-> properties you could disable for unique energy saving USB ports.
  This also on Win 7 power management.

• all 3 USB ports stopped working - MX30

  As a result, none of the 3 USB ports on my old MX30 work of 2 months. I unchecked the option in the hardware Manager of devices for energy saving, nothing helps. First of all, only the mouse stopped and I thought the mouse was to blame, but all of a sudden the machine does not recognize the USB memory key more.
  Any advice would be very welcome, because I can't work!

  Respond to my ad. I've updated the drivers for the USB host controller and BIOS and USB ports running again.

• Satellite L850 - USB Port stopped working

  Hello guys,.

  first sorry for my bad English, im from Germany.

  My new clearly L850 satellite has had some problems with sound-Port USB.
  I think it's the Usb3.0 Port on the left.
  While I'm workin with an external keyboard, the USB Port has stopped working and cannot identify the keyboard.
  All other devices that I put there, are out of order, but when I put an external hard Powerdevice with separate data for laptop, that he is there something ist connectet, but can't identify it.

  I have try all troubleshooting close it, like install new drivers, disable ports and restart and any kind of it.

  So maybe you have another tip for me?
  Or do I have to bring my laptop to the store for warranty?
  A Windows 8 64 bit on it, maybe it will help.

  Best regards, neothic

  Have you tried reinstalling the driver USB 3.0? Please try and check the functionality. If this will not help I recommend you do the ultimate test: back up all your data and reinstall Win8 using recovery media. Test it with clean OS preinstalled and factory settings.

  In the worst cases, you should contact the nearest Toshiba service provider and ask for help.

• USB PORTS STOPPED WORKING

  My USB ports for Entertainment of HP Pavilion laptop dv7-2277 cl stopped working.  I tried to update to Windows, since before system restore and still no luck.  the port on the left side of the laptop shown peripheral unknown whenever I plug anything in there and nothing does.  the two ports on the side right are nothing at all.  The indicated device MGR I use the current drivers, but he doesn't know what I use in the car.  I tried 3 different mouse and ACC Player.  This seemed to happed after that March 11, 2014 Windows update or after plugging in headphones NXG technology to charge the battery.  NXG assures me that they are not the problem and their agenda only charges the battery of the power from the USB port.  Ports due light ACC Player or headphones indicating the power is in them.  I'm stuck and have no idea what else to do.  Please help if possible.  Thank you for reading and taking the time to listen.

  My computer is now fixed and I'm superised that nobody else on this forum had the same problem.

  Microsoft just send a new update for USB mouse and if ports pointers fixed my question on all my USB.

  HAPPY CAMPER!

  See you soon!

• My USB ports stopped working

  My USB ports just stopped working all of a sudden. For this reason, I can't print, download images, load my i - pod, etc.. What can I do to fix this and get my ports working again?

  Hello

  Check the configuration/settings (BIOS/CMOS) often F2 when you start - make sure that USB is enabled.

  If a PC and if necessary the embedded USB can be disabled and a USB card can be used only
  is not expensive. For a laptop, using a real computer shop (no leeks and glances at a Best Buy
  or other stores) or system manufacturer support.

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

  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

  ==========================================

  If you have tried ALL the foregoing Installation of upgrade/repair in Place could help. This allows you to keep
  programs and data backups however redundant are always a good idea. (It is less likely to help
  If you have not tried all the above methods as the same parameters and conditions exist).

  You can use another DVD that aren't copy protected but you you need to own
  Product key. It must be the same version 32 or 64 BIT Vista OEM. Also the system
  machine to usually sell the cheap disk since you already own Windows. Don't forget to make a
  good backup or 3 (security in redundancy).

  On-site upgrade
  http://vistasupport.MVPs.org/repair_a_vista_installation_using_the_upgrade_option_of_the_vista_dvd.htm

  This tells you how to access the System Recovery Options and/or a Vista DVD
  http://Windows.Microsoft.com/en-us/Windows-Vista/what-happened-to-the-recovery-console

  How to perform a repair for Vista Installation
  http://www.Vistax64.com/tutorials/88236-repair-install-Vista.html

  I hope this helps.

• Windows Vista - why my usb ports stopped working, and how do I fix them?

  My 3 usb ports worked very well, but a few days ago they just stop working.  I updated the drivers even though my drivers were already later.  I even tried to update the drivers.  Nothing seems to work.  Can you help me?

  Hi WillisPop,

  ·         Since when are you facing this problem?

  ·         You did it last changes before the show?

  Use Device Manager to disable and re-enable all the 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.

  To disable and re-enable the USB controllers, follow these steps:

  1. click on Start, type Device Manager in the start search box and press ENTER.

  2. expand Universal Serial Bus controllers.

  Note: you may scroll through the list to find this point.

  3. right click on the first USB controller under Bus USB controllersand then click Uninstall to remove it.

  4. repeat the above steps for each controller USB is listed under Bus USB controllers.

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

  6. check the USB device to see if it works.

  You can also check out the article below for more information:

  Tips for solving problems of USB devices

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

• Two of my USB ports stopped working (wired mouse and iPhone do not respond). What should I do?

  I have a laptop Toshiba Windows 7 which has two USB ports, which both have stopped work or respond. They were both working an hour ago and I made no changes to the computer. I have a wired mouse connected to one of the USB ports and my iPhone plugged in with a USB cable. The mouse is not responding and my iPhone is not being detected or charged. What should I do?

  Hello

  1. do you think that no matter what error code in Device Manager?

  2. you are trying to connect other USB devices to the USB port and check if it is detected?

  3. have you rebooted the system to see if they start working?

  Method 1:

  Follow the link below, run the fix it tool and check if it helps.

  Hardware devices do not work or are not detected in Windows

  http://support.Microsoft.com/mats/hardware_device_problems/en-us

  Method 2: Remove and reinstall all USB controllers

  To remove and reinstall all USB controllers, follow these steps:

  1. click on Start, type Device Manager in the start search box, and then press ENTER.

  2. in Device Manager, click the Hardware tab,

  3. expand Bus USB controllers.

  4 right-click every device under the Bus USB controllers node and then click Uninstall to remove them one at a time.

  5. restart the computer, and then reinstall the USB controllers.

  6. connect the removable USB storage device and perform a test to ensure that the problem is solved.

  Let us know if it helps.

• Desktop Dell Optiplex 390 computer. Each USB Port stopped working

  Hello!

  I'm at my wits end. Turned on my Optiplex 390 a few days ago and found that my keybord or my mouse was working. I tried all the usb ports on the front and back. When I plug inn the keybord the numlock, capslock and scroll lock lights upp for half a second, but it was not detected.

  I can't get into the bios. as my keyboard is not detected at all. start or windows or linux or back or Freedos.

  My Bios is A01. Is trying to update, but you know no keyboard, I tried to reset the bios by the rider and take out the battery for a few hours. to no awail.

  Can anyone think of what the problem might be? doubt his material because none of the usb ports work and that they should be on different controllers.

  Manual says that the 390 office has an intrusion switch. See the manual for the location of the connection on the motherboard and the trace of wire to the switch.

  Blue button / stop more amber LEDs 1,2,3,4 is not an error code documented.

  Are you sure that you have disabled the BIOS as speed tells you how?

  You will have to strip to bare essentials, but more like the failure of the motherboard.

• Satellite A200 - USB Ports stopped working

  Hallo, I am DESPERATE for help, please.

  I have a Toshiba laptop Satellite A200 series with 32-bit Windows.

  My USB ports give me major problems.

  I use a USB Internet Modem on multiple computers and it works fine on all computers, including Toshiba.

  A month earlier, Internet USB would suddenly and constantly disconnect itself from the Internet, when I use it in the USB one. When I use USB port two, he recorded no more. The port does not have the device.

  Two USB ports work well when used by other USB products.

  I had always used Internet USB into the USB port, with a cooling for my laptop fan, USB 2 port. Now, when I insert the cooling fan, USB Internet disconnects and will not register, at least I have remove fan, remove and reinsert the USB Internet.

  I did the following:

  1. start an anti-virus
  2 uninstall, re-install and update all the drivers for the USB, chipset famlies, Internet Modem ports, EVERYTHING.
  3. I checked with my Internet provider, the problem lies in my PC, not them.

  I don't know what to do, I'm tired.

  Help, please!

  Now, when I insert the cooling fan, USB Internet disconnects and will not register, at least I have remove fan, remove and reinsert the USB Internet.

  I think that it is a problem of USB power.

  The USB 2.0 port provides 500mA, and in some cases more than USB ports can be connected to the same power supply to the motherboard.
  In case the USB device connected (in your case fan) would need more than 500 ma, it could be that other USB devices do not work correctly.
  I recommend you go to Device Manager and select the properties of USB controller.

  The last "Power Management" tab contains the option to turn off the device to save power.
  This option should NOT be checked. It should be disabled.

  Check it out.

• G1 laptop computer 350. All USB ports stopped working

  Hello. I hope someone can give me some advice on this subject.

  I turned on my laptop the other day and none of the USB ports worked. Any device I plug is not recognized and there is no power to the USB ports. (Goal of mouse does not light, bright external HHD is turned off. USB flash drives do not light up.) Powered deviecs are not also recognized is more than a problem of USB power. (When I say not recognized I mean there is no indication that they are still connected, no pop up error message or indication in Device Manager that the device may be defective).

  I tried to uninstall all USB drivers without result, I started from a Linux CD and a Win7 ERD without result. I also tried a hard reset, also without result. I have reset the BIOS and verified that USB is enabled in the BIOS but that also made no difference.

  If anyone has any useful advice, I would be very grateful.

  Funster58

  Yes ' fraid so.

• Why USB ports stop working after Windows loading screen?

  USB ports worked fine until a month or two it is a. I tried a system restore, but that did not work. System recovery PC Angel graphic screen freezes. I tried to uninstall and reinstall the USB controller from Device Manager, but it freezes and I have to leave the program via the Task Manager.

  Hello some poet,

  Thank you for your message.  Try to go to your computer manufacturer's website and download/install the USB drivers for your specific computer.  It must ignore having to install the drivers through the Device Manager.
  Please let us know if it did or did not help to solve your problem.
  See you soon

  Engineer Jason Microsoft Support answers visit our Microsoft answers feedback Forum and let us know what you think.