USB Flash Drives Not Recognized
Jul 4, 2005
Recently, whenever I connect a USB flash drive to my PC Windows displays it as an 'unknown device' and says it can't be recognised and has malfunctioned. I have used 2 separate USB flash drives which are both different makes and different sizes, but both come up with this error. I have tried both on different USB ports and the result is the same. I tried both on different PCs, and they worked fine. I've connected other USB devices, such as headsets and external hard drives with no problems, it just seems to be flash drives.I have tried uninstalling and reinstalling my USB controllers but to no avail, still says they've both malfunctioned. I'm using XP SP2.
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Feb 7, 2007
My USB flash disk is no longer recognized by XP on my Toshiba laptop, nor is my USD card reader, and it will not allow me to even install it although I have the driver disk. I have tried downloading drivers from MSN, service packs, gone through set up in the device manager, EVERYTHING! My flash disk works on every other computer but mine. I did get a couple of trojans, but I deleted them with MCafee and cleaned them as well.
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Jun 12, 2010
I recently re-installed a fresh copy of Windows XP Pro because of a patched user32 virus that caused me problems it seems to be gone now since the re-install. But now since I re-installed Windows XP, my dvd and cd drives don't show up in Windows. In BIOS they are recognized as ch.0 master and ch.0 slave drives. But in Windows they're not there in My Computer or Device Manager. I pop in a disc and it spins around but nothing happens.
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Aug 9, 2006
I have upgraded from windows 98 se to windows xp pro sp2 and when I did I no longer have cd and dvd listed in the device manager. I reformatted and put 98 back on and they are there and work fine. How do I get xp ro recognize my drives. I have a Dell Dimension XPS T800r with an NEC DV-5700A dvd and a SONY CD-RW CRS140E. I get a message when I log on to windows that windows could not load the installer for diskdrive and to contact my hardware manufacrer. Dell of course doesn't seem to have a clue about what is happening so any suggestions on how to get the drives back
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Mar 21, 2008
everytime i start my pc i get the following message:
error auto-sensing primary hard disk drive 0 strike the f1 key to continue, f2 to run the setup utility.
when i push f1 the same message will pop up.if i go into the setup utility and look at the primary drive 0 it says hard drive.it stands on auto but it doesnt show the capacity.
the same thing with the secondary rive 1.i have 2 hard drives.1 with 20 gig and the second 1 with 250 gig.both arent recognized by my pc.i cant format the pc cause i dont have hard drives to install xp on >.<
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Jul 25, 2009
everytime i plug in a usb/external hardrive, it isnt recognized in my computer, its not too do with any hardware, im 100% its a software issue, and i was running a program and it seemed to do something nothing comes up in my computer but you hear the connected sound, ive tried assignign a manual drive letter but it comes up with an error. and seeing as i cant back anything up because nothings regonized
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Aug 1, 2005
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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Jun 17, 2009
after upgrading to adobe flash 9 i can no longer play flash, like Internet, etc. when i try to install it again it fails everytime. i even tried installing in safe mode. i have windows xp. sorry.. i can't remember the error, i'll have to try it again to see.what's going on with adobe? i also had trouble with the pdf reader on explorer and had to reinstall.
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Apr 20, 2006
I have setup a wireless network between two computers in my office and have installed some software that will automatically backup folders on each of the two computers.It work by backing up certain folders on computer 1 to the hard disk on computer 2 and vice versa.I also have a program installed on both computers that uses the data on computer 1.simplify the process of locating the data on my network I have created virtual drives using the Map Network Drives function in Windows. However; if I start up my computer and open these programs - they can not find the drives, I have to open My Computer first and double click on the drives before the programs will read from them. I am guessing that for some reason Windows is not connecting to these drives, even though I have set them to "reconnect at logon".
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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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Dec 27, 2007
I recently installed the program registery fix and i believe it has caused my Cd and DVD drives or the paths to these drives to be deleted from windows as they do not show up in my computer. I have tried the options in the following list but none of them have helped me, i'm really stuck but i can't fix the problem.
- I've tried deleting the upper and lower filters but they are not in the selected registery.
- I've tried a system restore but i can't go back to a previous point before the registery fix install.
- I've tried unplugging the leads and restaring but this didn't help.
- I've tried microsoft guided help but it couldn't find the upper and lower filters.
- i beleive they are still listed in my bios but don't know exactly what i'm looking for when in bios.
I don't know where to go from here, i also run alcohol 120% a virtual drive software and the registery fix has had no affected on these drives but i'm wondering if this maybe why the program registery fix deleted my actual drives becasue of the virtual drives and replaced the paths to my actual drives but i'm not sure it's just a guess. I've deleted the virtual drives and tried the steps above but i've had no luck.
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Jun 26, 2010
My operating system is Windows XP Pro. As of yesterday all was fine, I even burned a DVD. Today "My Computer" isn't even showing my DVD/CD recorder, only showing Drive A: 3.5 Floppy. It started when I downloaded (I think) WindowsBlinds, just wanted to do some color changes. Well when I installed it, Norton came up with a Trojan. Norton Quarantined or deleted it and said no more further actions required. The install finished (windowblinds) and I tried a couple different skins and decided to uninstall it. Uninstalled with Revo Uninstaller
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Mar 10, 2006
I am using Windows XP Professional SP2 on an Asus A7N8X-E Deluxe MB. I have 5 internal HDD's and 2 external USB drives, I also have 2 DVD R/RW +- Dual Density drives, a Zip 250 and an Orb 2GB drive. So far this year I have had to reinstall my Windows like 8 times and done about 4 Windows repairs! Each time I seem to get 4 extra removable drives added to my system. In Disk Manager they are listed as "Generic STORAGE DEVICE USB Device", I have changed Device Usage to Do Not use this device (disable) and also I have uninstalled each device. Unfortunately, each time I restart the computer, they come back, shifting other drives to another drive letter.
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Jun 6, 2005
I work for a fire department and they have Desktop Authority map certain network drives when they login. For some reason, DTA will map the drives when they login, and everything works fine, but after an hour or two, they lose connectivity to that drive and are no longer able to access it. I know this is very vague, but has anyone had this problem?BTW, I just recently upgraded from NT 4.0 to Server 2003 Standard, and we've had tons of other little problems with permissions and the like. Is this the cause of the dissapearing drives?
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Aug 24, 2005
I have Windows XP Home installed and my dvd/cd burner is a Device Description SONY DVD RW DRU-530A. I have burned many files,photos,and music on this unit using cd-r discs. I am now using DVD-r discs and the burner will not recognize the disc. I tried DVD+r discs and have the same problem. Attached is the statement I get when I try to burn a disc. Should I go back to a CD-R disc or what could the problem be? I have tried to burn using Windows and using Nero with the same result.
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Sep 21, 2007
I have been using this pc with windows xp for about a month now and up to now I have had no problems, but for some reason my drive has suddenly stopped reading dvds...My drive is an Optiarc DVD-RW AD-5170AI can insert a cd and it recognizes and reads the disk perfectly, but when I insert a dvd windows appears to start to read the disk, but after a few seconds nothing seems to be happening except that the read light on the drive is lit and the drive makes a few strange sounds. I have left it to load for a few minutes but still nothing happens.After searching, I have found 2 possible solutions:The first was to uninstall the driver and restart. Upon restart windows will reinstall the device.I tried that twice, still experiencing the same problem.
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Mar 20, 2006
When I first got the computer, when I plugged in a digital camera, I got a "found new hardware" pop-up, thereafter when plugging in the USB cable, the XP camera wizard popped up and the pictures were downloaded without a fuss. At some point it stopped working, and I've ended up using Picassa to get the images d'ld, but it won't let me add photos to an existing folder. I want the Windows wizard to work again, that was better.My new camera is not recognized at all, and if anything pops up, it's Explorer. I tried to install drivers from the disc that came with the camera, but keep getting a message that says I don't need to. I've tried to manually add the camera with the "add hardware" function, but it won't work.
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Dec 13, 2006
A Toshiba Satellite 2805-S503 that originally came with Windows ME. My friend at work upgraded my OS to Windows XP but now my CD-ROM drive doesn't recognize CDs. It recognizes DVDs and some games, but it won't read any CDs.
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Feb 10, 2007
Cd/dvd appears to be working but when a cd is installed a message is received to install a cd so it is not possible to install any software from a cd as it does not appear to recognize that a cd is already installed
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Mar 27, 2010
When I try to go to the ipconfig command line in xp, I get this message: is not recognized as an internal or external command, operable program or batch file. I was trying to clean my DNS cache.
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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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Dec 14, 2005
I recently changed processors - nothing too technical -except now 5 times out of 6 , my PC will not recognize my DVD drive.There was no problem before.
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May 22, 2006
on another thread, i'm looking for an answer to a problem with my daughter's computer and her dsl connection i was asked to run ipconfig/all on both my computer, that works well with dsl modem, and her's, which doesn't. the command prompt brings this error message "'IPCONFIG' is not recognized as an internal or external command, operable program or batch file."
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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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Sep 6, 2008
I have an HP Compaq 6515b and after I deleted Nero (could have been before that) I noticed that it only recognizes my drive as a CD Drive and no longer my DVD drive. It won't let me burn DVDs so do I need to search out DVD software? I have gone to HP and the only thing that they say about a DVD (drivers wise) is for a WinDVD program. What do I need to install to get my DVD burner back?
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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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Dec 16, 2006
Recently, I have not been allowed to download some software because I am 'not the computer administrator' but I'm registered as one. When I first installed WinXP, I put myself as the administrator. What do I have to do so that I will be recognized as the administrator and then I can download these programs
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Jun 3, 2010
my wife has a fairly new iMac and I was trying to set up an older external hard drive for her, which the mac wouldn't recognize. Well, I went to my trusty xp PC and downloaded some drivers that I was doing to expand onto a usb drive. Some how, gasp, d@%#mn, they must have loaded onto my system and now when it starts, it does so in DOS.
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Jun 8, 2006
I did forget to mention that I had tried this external on 2 different pcs-- the other with xp home with sp2.
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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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Nov 14, 2006
I own a Dell Dimension 8400 system. I recently tried to download the Intel Chipset Software Installation Utility for the chipset from the Dell support website. As the installation of the software was completing, the computer froze and I turned it off. Now, when I reboot, the mouse and the keyboard aren't recognized after Windows XP loads. The mouse and keyboard do work before Windows XP loads.
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