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.
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
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
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.
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).
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.
Last night I installed ATiTool 0.24 over my 0.25 version (stupidly). I also did a BIOS update and installed Cat6.3 and then AVIVO converter. When I rebooted, I had this new PCI device requiring a driver,but it's an unknown device and doing an auto update helped me.I can't get rid of this pesky PCI device (tried uninstalling but Windows detects it again after restart/boot-up). All my stuff is working, so I don't know where this critter came from?
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.
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".
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.
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 .
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.
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.
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.
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.
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. The only thing device manager says is,Location: on PCI standard ISA bridge The drivers for this device are not installed. (Code 28) and in the conflicting device list it says Memory Range FED00000 - FED00FFF not available.
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.
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
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.
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.
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 devices are listed correctly by their names under Unknown, but the software won't communicate with them.Windows can see the devices, but it does not know what type of devices they are. It is only the imaging devices. One is a Canon 4200F Canoscan scanner, the other is a Sony Camcorder, and the third is a hardware capture device (Pinnacle Moviebox). The Canon scanner is a USB 2.0 device, while the other two are attached through firewire ports.
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)
- the unknown device says it is located on the the "Microsoft ACPI-Compliant Embedded Controller"
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.
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.
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.
I created a mess (but I'm learning more each day), and after a week got it going at least, but on boot got messagae "primary hard disc drive 1 not found" which required clicking F1 to continue. I ended up reinstalling XP, got everything up and running, but still have the HD message at each boot. I've passed all of the diagnostics in Set-Up, and found nothing on any of the troubleshooting sites that helped. Set-up says: Primary Drive 0 - Hard Drive; Primary Drive 1 - Unknown Device; Secondary Drives 0 adn 1 are both CD-ROM Readers. Everything works just fine, but I'd like to figure the drive problem. I had to create a partition for the reinstall - had no choice.
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.
So after attempting and repair-install (xp pro sp2) I ended up having to RE-install and was able to recover ALL of my data (this was largely thanks to the helpful people here, and their friendly advice) but that's also kind of the problem too. I now have a dozen versions of Owner, Guest, etc. My programs and downloads are all over the place and are missing pieces necessary for functioning. Thousands of empty files (that I'm reticent to delete because of their possible value/necessity) and paths that lead to nowhere.What I want to know is: Is there a way to consolidate/trim down the registry (this is the area that I'm least familiar with), to eliminate some of these loose/dead-ends & file paths? Also, I am the ONLY user on this machine. What (if anything) can be done to trim away some/any of the fat? For you see, I have gigs of it.
I just wanted to know if there is anyway I can find out how long a computer has been on for in total. I tried the systeminfo comand in CMD and that dosnt work. What I really need is the entire time kinda like the KM on a car, so I just wanted to know if there is anyway to find that out.
it would not do anything whilst on the windows loading screen (progress bar etc worked but it got stuck on that screen and wouldn't advance), the HDD light would blink for a while and then it would just sit there. Usually i would restart until quite a while later I discovered that if i left it for long enough (about 5-10 minutes) it would eventually load. I have also performed several reformats in this time and the problem would disappear for a while then show its ugly face again. It wouldn't do this every time but a large majority of the time it would.
Instead, it would go through the loading screen, finish that, and the screen would go blank (no signal detected etc) and then it wouldn't do anything at all, I have left it sitting there for about an hour once to see if eventually would work but it didn't. So to fix this I have to restart the computer and it would come up with the screen asking me if i want to use safe mode and usually i would either choose the Last known good configuration or start up windows normally, occasionally i would go in safe mode and restart from there and it would usually work but not always.
I slap one together then install windows without a hitch.then I toss in the mobo driver disk and the system hard locks can't even get to the task manager. A few disks and reboots later, the same stuff is happening.I check the device manager and not only is the drive not showing up as a problem, but it's recognizing it as the proper model. So then I go and set the region code (because I had an issue before with a drive not reading before I set a region).still same problem.Like I said above, I'm building 2 of the same systems.so I took the other drive and plopped it in. SAME FRIKEN THING.I'm kind of stuck because I can't update stuff without the cd rom drive (I guess I could use a small usb thumbdrive)and the drivers on that disk enable the onboard lan, so I can't even check windows update.so I use my thumbdrive and install the latest forceware, including the ide drivers.
