I was having the problem of my 2 week old, 2Gb USB 2.0 Flash drive suddenly becoming an 'unknown device' when I inserted it into any one of my USB ports. Thanks. If you have recently installed a new application on the computer, consider uninstalling the program to see if there is an incompatibility with the USB device. He only had three USB ports on his computer, so he bought a hub where he could connect an additional 8 USB devices. navigate here
Dismiss Notice TechSpot Forums Forums TechSpot Core Build a PC Today's Posts USB 2.0 storage device malfunctioned in Windows XP. Method 6 - USB Troubleshooter If nothing has worked so far, you can download the Windows USB Troubleshooter Fixit tool. If you are having this problem with Windows 8 or Windows 8.1, then you might be in luck. Now physically disconnect it from the mains power supply.
How long will this continue? Your cache administrator is webmaster. Reconnect everything, boot up your PC and enjoy your fully functioning USB 2 ports and devices again! Step 4: You will see an Unknown USB device (Port reset failed) with a yellow sign in Universal Serial Bus controllers.
Will guess it's about time to do a defrag as well /********** EDIT ***************/ And still provide that feedback on Device manager Oct 11, 2008 #6 peterdiva TechSpot Ambassador Posts: WindrvNT.sys belongs to Folderlock. Search for: Recent Posts Setting up a DHCP server in Windows2003 DHCP Requirements. Steps to Initiate Recognition of the USB Device by the Device Manager Step 1 – Unplug and then plug the USB device back into your computer.
I hope... Step 3 – Plug the USB device into the hub or computer. Login now. The small microprocessor on the motherboard will reload the drivers and your USB ports should hopefully be recognizing devices again.
Reply bob clarke says 24 February, 2016 at 10:17 am solution 3 worked for me with windows 10 - many thinks Reply Gaura Metkar says 6 March, 2016 at 6:44 am Hope it works for you - it must be worth a try.Go figure!Treeman-- Treeman------------------------------------------------------------------------Treeman's Profile: http://www.msusenet.com/member.php?userid=1260View this thread: http://www.msusenet.com/t-1870555024 AnonymousJun 23, 2005, 12:35 AM Archived from groups: microsoft.public.windowsxp.hardware (More info?)"Treeman" wrote: Step 2 – Click on the Device Manager window to select the computer you are using as the location for the hardware scan. Step 1 – Unplug the USB device.
Step 2: Now Restart your PC. http://midsolutions.org/windows-xp/setup-did-not-find-any-hard-disk-drives-installed-in-your-computer-windows-xp.html Now you want to expand Imaging Devices, Universal Serial Bus Controllers and Unknown Devices. Regarding free space on C:, I just tell you C: is for Vista, so I suposs is not under the problem, because XP is installed in F: and all virtual memory This is only something that could work, i dont know if its the same thing as i had.
Disable Power Management of the USB Hub Step 1 – Reseat the USB device in the computer by unplugging and plugging back into the USB port. If it does recognize the device, then leave them unchecked. Sometimes the motherboard needs to be “rebooted” because things can go wrong, i.e. http://midsolutions.org/windows-xp/setup-did-not-find-any-hard-disk-drives-windows-7.html Device manager kept showing an 'unknown device' and any attempt to reinstall or update drivers would fail.
Disabling this feature can fix the USB device not found error in some cases. Solution 3: Reinstall USB Drivers If USB Device Not Recognized because of corrupt USB drivers, then below steps are solve the corrupt USB drivers and also solve USB not recognized the problem. Now I am 1h working without BSOD's.
Remove the Computer from the Power Supply If you do not have time to take the basic troubleshooting steps to fix the USB device not found error, or they do not Report abuse: http://www.windowsforumz.com/eform.php?p=1737297 Can't find your answer ? Ask a question and give support. Step 2 – Select the “Start” menu button and enter “Devmgmt.msc” in the search text field followed by pressing the “Ok” button on the computer’s keyboard.
System Properties / Hardware / Device Manager / Universall SerialBus Controllers / USB Root Hub / Properties / Power Management andunmark the option for power save.2. Click the “Ok” menu button. For this method to work, a Restore Point will have to be selected prior to the issues with device recognition occurring. weblink I have been trying to fix this problem for a few days without any luck.
Win XP kept reporting a device malfunction and the drive was unrecognised.