USB Not Working - Error USB Device Not Recognized
Jun 9, 2007
Here is the situation, I have a Dell 700M Inspiron Laptop running windows XP. I have 2 usb ports and alternate between 3 devices - a usb mouse, my pocket pc cell phone, and a Western Digital Mybook External Hard drive. All of a sudden my USB ports stopped recognizing my devices. It still sends power though because I can still plug in my cell phone to charge it. The problem is that the computer fails to recognize any devices anymore, even my mouse. I have uninstalled and reinstalled the drivers and restarted my computer several times, I even tried system restore. It may have to do with the fact that I accidently unplugged my hard drive while it was still running without using safely remove my hardware. I have heard stories of western digital harddrives causing BIOS and motherboard failures.
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Nov 10, 2007
the other day I tried to insert my friends usb into one of the frontal usb ports, it said it couldn't recognize the device or that it had malfunctioned. From that point on, Anything connected to the pc via the usb won't be recognized. everything else on the pc works fine, so theirs either some really easy way of fixing this or i need to buy a new motherboard/serial bus.
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Dec 16, 2006
What would cause a relatively new HP Media Center computer to recognize other things inserted into any of the USB ports in the front (for example, a jump drive), but NOT recognize one device (a Lowrance iWAY 500c GPS car navigation device) that is readily recognized when it's plugged into a different computer?The HP computer is a friend's. The "different computer" is mine, a custom machine from Puget Systems with a P4 on an Asus MoBo. On the friend's computer, we get a "bubble" message from the taskbar to the effect that the device is not recognized -- so it knows something is plugged in, but apparently doesn't have the driver for it.
Her system is running Win XP and I assume (but don't know for sure) that she's kept up with Windows updates.
When I check MyComputer, the Lowrance isn't on the list. In Device Manager, it's listed as "Unknown device".I'm wondering about things like the HP lists a pot full of drives because it has all the camera card slots, etc. in the front panel (I think the drives go all the way up to J:, almost all of which are "removable drives".
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Mar 21, 2010
i have belking N+ adapter comes with a stand which plugs in to my usb drives. Recently i have been getting Device is not recognized ive read through many forums on the "Fix" i unplugged my computer i un-installed my drives and the problem still continues only if i have the original belking stand. when i remove the stand and connect the adapter straight to my computer everything is fine. I did some tests with other usb extension cables i get the same problem but after removing and plugin in the cable a few times it works. Ive had moments when i have the belking stand connected i will get a connection signal but a few seconds later it will send a message USB device not recognized.
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Jul 8, 2005
Whenever I try to use a usb device in xp pro it always shows up as unknown device or the usb device not recognized pop up comes up. It happens with everything, memory stick reader to a gaming controller. My specs Aopen AK79D-400 MAX mobo ,512mb ddr, 160gb western digital, xp pro .
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Sep 20, 2007
I've just bought a Lacie Porsche external harddisk 120GB if i connect it to a Windows XP Pro. SP2 / Desktop Small factor D500 1.7 Ghz PC the controller recognizes that a device has been connected but i cannot find it of my computer neither on the Disk management window.
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Apr 11, 2008
6 months ago a message popped up saying "USB Device Not Recognized". I have 8 usb ports. The only one that i'm using is for the printer. It works fine. This message seemed to pop up after using my Sansa MP3 player. It to works fine. Everything that I have read about this problem is when people have it the device does not work.In my situation everything(digital camera,printer,Ipod)all work with no problem. This message went away for almost 2 months but now it's back again. Anyone help me out here? I'm running Windows XP home edition and the computer is 1 1/2 years old. One other thing. As i'm typing this the message appears and disappears on it's own. It will do this once every 30 seconds.
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Sep 1, 2005
I have a Sabrent SBT-EKU25 external enclosure with a 2.5 inch hard disk in it. This is a USB 2.0 drive and whenever I connect it to USB 2.0 port, it is not recognized (or "recognized" as an unknown device" ) on all my machines. It however is recognized as a drive and works fine on one laptop which has only USB 1.1 ports.I have tried separately powered USB hubs as well without success. So I don't think it's a power issue.I have even tried deleting all USB devices in Device Manager and let the machine rediscover them.
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Aug 5, 2005
i installed an usb device,and all the drivers for it,it worked for two days, it was recognized.Now it will not recognize the device.I have tried uninstalling and reinstalling the device drivers, all the software that used the device. and even tried to install the driver by locating with 'have disk' browse. i have tried all the directories that the drivers were installed to, and then some. and also the install disk. Device manager says that its an unknown device, and theres no problem with it. but will not update to the proper drivers. How can i alleviate this problem short of reformatting my computer.
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Jun 29, 2005
I have a Gateway 710X running Windows XP Home Edition which has been patched up-to-date.Connected to this is a Western Digital 80Gb external hard drive Model Nr WD800B005-RNN) The drive had been connected to the USB port for a long time without any problems in access. Tonight, however, it seemed to have been discovered as disconnected, and we reconnected the USB cable.Upon reconnection, we get pop-up windows in the lower right corner which state: (1) Found New Hardware: USB Device then switches to (2) Found New Hardware: Unknown Device then appears (3) Found New Hardware: Your new hardware is installed and ready to use then appears (4) USB Device Not Recognized
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Jun 29, 2005
I have a Gateway 710X running Windows XP Home Edition which has been patched up-to-date.Connected to this is a Western Digital 80Gb external hard drive Model Nr WD800B005-RNN) The drive had been connected to the USB port for a long time without any problems in access. Tonight, however, it seemed to have been discovered as disconnected, and we reconnected the USB cable.Upon reconnection, we get pop-up windows in the lower right corner which state: (1) Found New Hardware: USB Device then switches to (2) Found New Hardware: Unknown Device then appears (3) Found New Hardware: Your new hardware is installed and ready to use then appears (4) USB Device Not Recognized
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Dec 17, 2005
I gotta a XP Home SP2 Machine was running fine then on boot up sound device not found. went to device mng and no items displayed. System restore had been didabled and Norton disabled as well. Done a spyware scan pull nout so did virus
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Jun 29, 2007
I run WIN XP Pro on a Dell desktop that has two hard drive. I recently installed a CD drive and upon rebooting, the secondary drive (D), although recognized by the startup (BIOS), is no longer present when Windows finally opens. It's not present in the device manager and all shortcuts to it are null. All the bables are correctly installed and I've tried rebooting, re-installing the drive to no avail.
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Oct 28, 2009
Issue 1 :
I have bought the current hard disk one month back due to failure of the previous one. Both are of Seagate. My PC stuck up suddenly while working with the noise from hard disk ( clicking noise ) When I restarts the PC the PC stops booting after the BIOS screen with the error messages like "unable to load OS" or "disk not found". If I remove and replace the hard disk connection, it works normally. But, the PC stuck up after 1 day or after few hours. I have performed the hard disk self tests with Seatools software from Seagate.
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Dec 30, 2008
There is six places where I can insert a usb on the computer, I have tried them all. I can insert my mp3 and it will start to charge, but a lot slower than before and I cant add more music because it wont pop up at "My computer". I can insert my mouse and its red light will start but the mouse is still not working. No usb device at all will show up at "My computer". Sorry for not explaining better, but I hope somebody have a clue about what I'm talking about.
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Feb 1, 2008
I have a linksys wireless network router installed on my computer (Windows XP SP2, 512mb RAM). It was working fine until about a week ago when it started getting sporadic and i had to re plug it in almost every day to "re work" it. Then it stopped working altogether. It lights up when the comp is booted but then it turns back off. If plugged in during computer being on, it just says "USB Device Not Recognized", no matter how many times i uninstall & reinstall the software. The only thing that "works" is when I uninstall my Intel USB Controller hardware--the Internet router comes back to life for a moment and shows up in the system tray only to flick back gone. It's soo frustrating.
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May 28, 2008
After I restored my computer due to some computer problem, I found that my mouse and network adapter suddenly not working, though their properties shows that they are 'working properly'. However I noticed that they are both not digitally sign (wth Windows), is this the culprit?
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Nov 3, 2008
There was a power outage at my house yesterday while I was away. When I came home my computer screen was black and displayed the message: boot disk error, insert system disk and press enter.
I tried rebooting but the message persisted (after going through the initial information about IDE stuff). I went into the bios to see if my hard drive was dead, but the bios still recognized it and my secondary hard drive. I also tried to boot from a Window XP cd and repair Windows on my master drive, but the error message came up regardless of the cd drive I used I have a CD drive and a CDRW/DVD drive. In both instances where I had the CD in one of the two CD drives, the CD was spinning and presumably being read) but I could never get the computer to boot off of it. (Note: I tried both CD drives, because my bios is set to boot off CD first, although I don't know which CD drive it actually looks at first
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May 16, 2010
i just reinstalled xp on my laptop and now it wont show up anything when i insert something intothe usb port. the light comes on on my usb stick. but thats all. i checked the usb controllers and the hubs and it says the device is working properally.
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Feb 13, 2007
Since before December 2006 I have been unable to get my AOL 9 to run...I have only been able to use AOL8...I have re-installed new AOL 9 disks...un-installed them and still the same problem remains eg..."AOL9 will now install the files needed for you to be able to connect".I got in touch with AOL Tech help and they told me that I was in a LOOP and gave me steps on how to deal with my problem...but,it didn't work.I have been searching around the web and found something called "Apropos" which can be a cause of all the problems I am having also it can cause there to be a blank window in Device Manager?I went to my Device manager and yes mine is Blank
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Oct 25, 2006
I just tried to repair my windows XP Home with the XP CD in the drive and with a boot up - I got to "Windows XP Licensing agreement" "End User license agreement" "F8=I agree ESC=I do not agree PAGE DOWN= Next Page"When I press F8 nothing happens, when I press ESC nothing happens, When I press PAGE DOWN it works, but thats no help.Also if I just insert the XP Home CD (without a boot up later) and try a normal repair off the CD a message advises me as follows : "install Cd not recognized, your info on hard drive is a later version" OR something like that.So how can I repair XP home if it is not recognized when i already have SP1 and SP2 installed?
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Mar 24, 2006
I have an external USB 2.0 case with a 160GB HD that was working just fine until a couple of days ago when I stopped the drive and unplugged it from the PC. Next time I connected the drive to the same PC, I got a message saying "There was a problem installing your device" and in the Properties window for the device a Code 10 appears. I connected the same drive to a different computer and it is working perfectly. I uninstalled the device and reinstalled it again but the problem still persists.
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Oct 9, 2005
Since upgrading to Windows XP Service Pack 2, my network adapter (a 3Com 3C905-TX-M)does not appear in Device Manager and I therefore can't get this computer to appear on my home network. The network adapter is still working because that's how I connect to the Internet, via LAN to a router then cable broadband,and IPCONFIG gives valid results including the correct IP address from the router via DHCP.I installed a clean copy of XP Home on a spare hard disk. The network adapter appeared in Device Manager and the computer appeared on the network. I then upgraded to SP2 and the network adapter disappeared from Device Manager and the computer no longer appears on the network.
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Dec 14, 2007
I have Windows XP Profesional SP2 system. I'm encountering a problem with the 'Safely Remove Hardware' feature. When I insert a USB Flash Drive or any other USB Mass Storage device, it functions properly. But, when i Safely Remove that USB device(From the Safely Remove Hardware icon on the Taskbar) and then insert it again ,i get the usual 'Safely Remove Hardware' icon at the Taskbar but the device does get displayed in 'My Computer' or any other place and i can't access the USB Mass storage Device. So i have to restart my PC and then only the USB Device becomes accessible from 'My Computer'.
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Jun 10, 2010
at start-up I get the error message Device Manager not working and now I cannot access my printer(Lexmark 2500).
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Apr 13, 2009
I am using windows xp sp2 professional.few days back my usb ports stopped working suddenly.They don't recognize any usb devices.Also there is nothing like usb controller or usb ehci in the device manager.I don't have anyway to know what has happened.The motherboard is intel 845 gvsr.If you have any links for updating the usb driver or the bios or any solution to this
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Jul 17, 2005
I have an Epson Perfection 1200 U scanner that works fine in Win 2k. With XP, Device Manager said device is not working properly. Windows found the driver, and I began installing. Then a message: "Has not passed Windows Logo testing to verify compatibly with XP. may impair operating of this system." Scary message. Does this mean that I should avoid installing this scanner?
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Nov 23, 2006
pc wont boot. its a sata hard disk which is detected upon boot. however i dont even get the windows splash screen. in the bios - the hd doesnt show up. safe mode doesnt work neither does last known good settings. i put the xp disk in and attempted to do an (install followed by a repair ) rather than system console. nothing works because the xp disk claims no hard drive exists. is it cos its serial ata. im not exactly sure if its got raid setup etc although i do possibly remeber a viaraidtool popup that might have come up on the odd times ive been over and used my dads pc to educate him on eBay. :-) anybody got an idea. sorry i dont have specs.
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Jun 22, 2005
my DVD ROM wont work. It has all the drivers installed and it is enabled from the computer management in the control pannel. I also enabled it using my backup software but it is still not recognised. Any sudgestions?? I used to have both Nero and Instant CD/DVD installed. I removed Nero just in case there was a conflict with the software but it still remains the same.
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Jan 5, 2006
Since installing Windows XP SP2 (upgrade from SP1) I noticed that Standby does not function. When I manually go to Standby, or if my laptop tries to go into Standby as per the power management settings I have set, I get the following message: "Standby has been prevented by the Standard 101/102-Key or Microsoft Natural PS/2 Keyboard device driver. You may need to install an updated driver."
Any ideas on what I can try. I have tried uninstalling the keyboard in safe mode and rebooting to reinstall the keyboard drivers. I have also checked my BIOS settings, and tried resetting the power management settings. I have even updated my ATI video adapter drivers. I noticed the problem shortly after installing SP2. There are no updated drivers available from Gateway for the keyboard.
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Oct 14, 2005
okay I've been trying for the life of me to get my friends mp3 player to download songs onto the player.but for some reason after deleting the files (songs) that was already on there I get a memory error."mp3 explorer md-fd150, the disk media is not reconized, it may not be formatted, please format if you see this message again after connecting."I have no idea what this means because I'm using my Removable disk (H) with the USB cord to the mp3 player.
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