System Treating USB Flash Drive As "unknown Device"?

Nov 21, 2009

Recently I have not been able to access my flash drive from the USB ports. Whn I check the device manager I can see the drive but it is listed as unknown device. What would be a good fix? I am using XP.

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May 24, 2010

I have a bit of a problem, for some reason my system is showing "unknown" in my device manager, the only hardware that has been installed on this system is a new video card, (radeon HD5570) that seemed to go in without a hitch. Simultaneously, with this appearing I started having issues with windows media player not play .mod files, using web help it says that I need to update my audio drivers, but according to Dell they are good. Would really like some help with this.

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I have installed a targus 7 port powered USB HUB on my computer. Device manager reports unknown device. I have deleted and it restalled the drived after the system rebooted. Device manager still saying unknown device. Their is not driver needed according to the manufacture. When the PC is booting it does see the IPOD mini and the Flash drive. But once the PC is fully out and login and I look a the device manager is still reporting unlnown device error (code 10).

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Dec 24, 2007

I have a huge problem with two unknown devices in my "Device Manager" after formating and reinstalling fresh copy of Win Xp Pro.In my "Device Manager" there is two lines with Unknown devices.

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This in plain non-techie English? My Microsoft Camera and scanner Wizard no longer comes up when I insert the FLASH-CARD from my HP digital camera in the FLASH-DRIVE on my PC. Nothing happens now, It worked great for 2 years.How do I get the wizard back so I can unload my camera using the flash-card in the flashdrive?I have WXP-Home/SP2. I downloaded some XP security updates but don't know if they caused the problem.

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Aug 14, 2007

This is the first time i've done this. I'm using windows xp. I have a flash drive that i use for backing up files. All of a sudden I can't access it. When i plug it back into the USB port that I used it originally, the computer reconizes that it is plugged in (by showing that i have a new drive) but asks me to insert a disk. I've tried it in my other USB2 ports with no luck. I notice that the LCD (?) flashes when I plug it in. I've tried other flash drives in the same ports and they work fine. I'm wondering if I some how changed the format from FAT to NTFS or the other way around.

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I have a USB 512-meg flash drive; brand new, outta the box. I used it on my computer at home with no problem--I plug it in, the computer recognizes it and it shows as another drive. However, my computer at work recognizes it and says "your device is ready to use" but it doesn't show up as a drive so I can't get into it. I've done the whole "troubleshoot" bit to no avail.Is there a way I can go to it manually or...? How can I see it so I can double click on it and get to the contents?

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Feb 6, 2007

I'm using Win XP SP2 . I installed a second CD rom drive which was obviously no good because it caused the other one which is perfectly ok to show up in the bios as an unknown device. Both showed up in the bios as unknown device but the the first still showed up in system hardware the second one didn't.I removed the second one from the computer and the first one then showed up accordingly in the bios as the proper device but the bios is still saying the second one is an unknown device. Every time I start my computer I get the message secondary device missing press the F1 key to continue.

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May 23, 2007

Just put together my new system and all is working well, but I am left with this unknown exclamation in the "device manager". I can't figure out what it is.
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USB Recognized As Unknown Device, But Worked Before?

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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Unknown USB Device: Shown As Installed Then Not Recognized?

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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Unknown USB Device: Shown As Installed Then Not Recognized?

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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Aug 23, 2009

I installed all the Windows updates and loaded the drivers off the utility disk that came with the motherboard. I also got the updates from the GIGABYTE website. The utility app shows all drivers are installed correctly. It took me a couple of days to get audio to work because the initial driver load got corrupted somehow and it wouldn't let me reinstall until I deleted the driver's entry in the registry. After that I was prompted for the driver again and it installed fine and sound finally started working. Everything appears to be working and there is only the one Unknown driver in my Device Properties and it's really irking me. All my drivers were installed correctly in my previous installation

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I just installed Windows Xp on a puter. After installing all the drivers including the video card drivers from ATI's website the computer discovered an "unknown device on ATI Radeon X700"The motherboard is a gigabyte 8I865GME-775-RH and obviously a X700 Radeon Video Card. AGP drivers, chipset drivers and the like are all installed. The video card showed up as an unknown device when I first installed, I put in the catalyst drivers and it detected successfully, upon reboot this new unknown device came up and I can not seem to find any drivers for the thing. I tried reinstalling the catalyst drivers as well to no avail.

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I don't have sound and haven't for the past few days and then this morning a Found New Hardware Wizard keeps popping up trying to install software for an Unknown Device on High Definition Audio Bus.In the Device Manager, there are yellow question marks near Other Devices and then below it, in sub categories is a list of at least 20 (!) Unknown Device on High Definition Audio Bus.In the Audio Device section, there are NO Playback Devices, NO Recording Devices, No Midi Playback and the same in the Voice section. Usually I have Realtek listed there.

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Jul 5, 2009

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May 13, 2005

All of a sudden, the imaging devices attached to a computer with Windows XP Pro SP2 are showing up under the Unknown category in the Device Manager. The
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I installed a fresh copy of WIN2000 on my IBM Thinkpad A21m but I am having a problem setting up a device in Device Mangager. I have no idea what is going on.

When i reboot the laptop it prompts me that it has found a new piece of hardware and it wants me to install the driver for it. The problem is that I have no idea what device it is since all the devices that should be working are working - so i don't know what to do.
The clues that I have noticed that might help:

- the laptop takes a LOOOONG time to boot up (3 or 4 mins), and is sort of sluggish in operation (compared to how it ran when i bought it)

- my internet connection is super slow ( I have a DSL router that serves 3 computers incl. mine, the other two have XP and everythign runs smooth)

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Would any one know what Device this "Unknown Device" is??? I just need to know so i can install the driver so my system can run properly.

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Dec 28, 2007

Everest shows 3 unknown devices but device manager doesnt?my soundcard dissapeard today, i can still pick it up using "Unknown Devices" and EVEREST although when i try to run audigy 2 drivers, it`s telling me there are no supported devices in the system, anyone know how i can force the REAL device manager to see these devices?it seems only everest and unknown devices is picking up my soundcard, it also says AUDIGY from CREATIVE. it just is not appearing in device manager for some reason so i am unable to actually install it.

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