Windows Vista USB Device Not Recognized

Anonymous
2009-07-01T15:21:59+00:00

I have tried all of the suggestions to fix this problem. What else is there to do. Right now I am running the systm scan throught the command prompt. The last thing I had plugged into my computer before the USB error messsage appeared was my iPod. I have never had any other USB problems besides this one. I have a Toshila A135-S2326 that came with Windows Vista Home Basic already installed. I have the lastest update and BIOS version. I have reset the BIOS to the default seeting and changed the time. I have disconnected the computer from its' source along with the battery. I have disabled all the USB ports restarted the computer, enabled them again. I have uninstalled all USB ports and let Windows reinstall them. I have done everything that I know to do and still nothing. I have read and searched for a solution time and again. Can someone PLEASE help me. I desperately need a solution like yesterday. Thank You!!!!!

Windows for home | Previous Windows versions | Devices and drivers

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Anonymous
2009-10-26T01:29:55+00:00

There is possibly an unbelievably simple solution to the “USB device not recognized ” error which worked for me. I love USB and have 5 ports on my computer so that I can connect my mouse, keyboard, camera, phone, and printer to it all at once!

However, last weekend, my computer stopped recognizing my USB devices! The strange thing about it was that the USB ports were not bad because all of my devices were still getting power to them. I could still charge my cell phone without a problem!

!\[\](http://www.online-tech-tips.com/wp-content/uploads/2008/07/usbdevicenotrecognized-thumb.png)

So I started with the normal fixing methods, including uninstalling the drivers for my devices and reinstalling them. That didn’t work! Next I tried System Restore thinking that maybe I had installed something and it caused a conflict with the USB system drivers. That didn’t work!

I read online that in order to fix this problem I should go to Device Manager and uninstall all of the devices under USB Controllers. Restarted the computer, reinstalled the USB drivers, but the problem STILL did not go away!

You may also see in Device Manager that the device shows up as an “Unknown Device ”.

!\[\](http://www.online-tech-tips.com/wp-content/uploads/2008/07/unknownusbdevice-thumb.png)

So how did I finally fix the problem? Well, apparently it’s a super simple solution! No need to edit the registry, uninstall drivers, or anything of that sort.

Simply UNPLUG YOUR COMPUTER FROM THE POWER SUPPLY . Yes that’s it! Note that this does not mean just turning off your computer because modern computers don’t really turn off when you press the power button as the motherboard still gets power.

First to explain, the motherboard is where all of hardware of the computer is connected to, including the USB ports. Sometimes the motherboard needs to be “rebooted” also because something can go wrong, i.e. all your USB ports suddenly stop working. The small microprocessor on the motherboard will reload the drivers and your USB ports should be back to recognizing all devices!

So first turn off your computer using Shut Down or pressing the power button and then UNPLUG it from the wall outlet. Let it sit for about a minute and then plug it back in.

Hope this helps someone fix that highly irritating “USB device not recognized” Windows error!

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Anonymous
2009-07-01T20:23:36+00:00

Try a System Restore to pick a Restore Point before your problem..

Click Start > Programs > Accessories > System Tools > System Restore > pick a different time > Next > etc

http://www.apple.com/support/ipod/

And also ask Apple iPod Support about their Product

http://www.csd.toshiba.com/cgi-bin/tais/support/jsp/home.jsp

And download the latest USB Universal Serial Bus Controllers for your Model Laptop from toshiba.

Cheers.


Mick Murphy - Microsoft Partner

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  1. Anonymous
    2010-06-10T17:36:24+00:00

    I've tried everything, system restore, unplugging and plugging into another outlet, updating my Bios, uninstalling drivers and reinstalling, nothing has worked for me. 

    None of my usb ports work - my mice, keyboards, cams, i keep getting that stupid bubble and i am about to slap someone at Microsoft upside the head with this laptop -

    Question ?  do i need to save everything before i remove the battery ?   I'm going to try this last ditch effort tonight of removing the battery and letting it sit all night  -

    I can work if none of my stuff works so if anyone has a real solution beyond all these others things that havent worked can you please help me - i am about to lose my mind with this

    Thanks all

    Sweetpea

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  2. Anonymous
    2010-07-24T18:05:05+00:00

    I am running Vista Home premium, the power went off in the house and when I turned the computor on again, it states that the Keyboard is Disabled. I cannot get to the BOOT menu at all.

    The USB ports appartently do have power since my I Pod still charges when I plug it in. But without a keyboard, I am dead in the water. 

    Does anyone have a suggestion?

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  3. Anonymous
    2010-08-02T03:35:12+00:00

    *"MSFrustrates It baffles me that THOUSANDS of people have this issue or some variation of it, and NO ONE at Microsoft or anywhere else for that matter offers a real solution. Unless of course you want to count the "unplug your computer" method, which is the silliest band-aid to a problem I have ever heard, even if it works for many (most) people. I, unfortunately, am one of those for whom the magic "unplug it" method does NOT work. I have tried everything that every other poster and responder has suggested, and am not sure what else to try. I would really like to see a REAL response as to the cause of the majority of the issues posted relating to USB error aside from the usual "restore your settings, use your restore disk, unplug it, replace your USB device, etc etc etc." HEY! MICROSOFT! FIX THE PROBLEM!!!! OR hey, here is an idea, a new one to you I am sure... don't release products until they have been tested (NO! I mean really, fully tested [see XBox-360 RROD]) In case anyone who reads this actually has a real working solution, I am using a Toshiba A135-S2386, Vista Home, and every USB port is unusable on any device. Every port provides power to the device and the sound chimes to indicate a USB device has been attached but then proceeds to display the errors identical to those listed in the post by johnkelly46 above. "*hey guys n specially mr MSfrustrates i have the same laptop as u mention above the Toshiba satellite A135-S2386 n i m facing the same damn pro all my USB ports are not functioning one of them says USB not recognized n rest 3 shows that my USB is connected but whenever i access it through my computer that window stucks there.. so i m really in a mess n looking for solution if someone cud really help i have tried that inf thing n restoring thing but situation remains same n its really frsytrating

    SOLVED SOLVED SOLVED ! ! ! ! !

    (kind of) This post applies to the Toshitba A135-S2386 issue of total and complete USB port failure. I have been researching this issue on and off for about a year, maybe more, and have drawn some conclusions:

    1- The issue is not repairable. I tried 3 different operating systems (Vista, Ubuntu [Linux], and WinXP), and the problem remained

    2- It is caused by extremely poor construction by Toshitba, combined with an extremely processor heavy Windows Vista. The A135-S2386 was "designed specifically" for Vista, except that the design is horrible. What apparently happens is that the processor is chugging away so hard to keep Vista running that it overheats tremendously, and it burns out the chipset running the USB ports (or something like that, I am removing a lot of the technical jargon here obviously).

    4- Toshitba won't help you, their technical support is ridiculous and they will not admit to a faulty design. The only way to "fix/repair" this is to replace the chip, and I have neither the tools nor expertise, and it is soldered in to my knowledge and not worth the effort in my case (it is not  the processor, it is the chipset)

    5- When you try to downgrade to XP on this laptop (to save your MOBO from overheating), you have a b!tch of a time finding XP drivers (remember, "designed for Vista!"). There are some sites out there but you just have to look. I started by downloading and installing PC Wizard so I knew exactly what to look for... The toughest one was the ethernet controller, but after 6 tries I finally found this link for the Atheros AR5007 (most sites list AR5006 as the number, but after I tried 6 times I installed PC Wiz and it gave me AR5007, and the driver on this link is for it, and it worked.)http://www.mediafire.com/?cfdzj3eaizt.... I loaded it to a CD from another computer and it worked like a charm.

    4- NOW FOR THE USB SOLUTION (actually, WORK AROUND). If you have the same USB dead port issue, do not despair, you may not be left with a pretty paper-weight. I went to BBuy and purchased a PCMCIA card with 2 USB ports, $30, and plugged it in and it worked. I now have USB funcionality, but of course, only 2 ports. NOT A COMPLETE SOLUTION, but at least it renders the laptop usable to a certain degree again. The card I purchased has a port for a 5v (I think) power adapter (not included), but I suppose you could get that too and it would have enough power to run a USB hub to add extra ports off of/into the PCMCIA card for extra periferals, but I only need a mouse for this one - for now.

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