amrita

Dear All, In regards to "USB Device Not Recognized" after personally having tasted it and searching for solutions, i have found a way it can be resolved. The following is what i did to resolved this USB issue: Unplug your USB Device first. You will plug it in again the final steps. Before you do this, do a backup of your registry: Start-Run- type in "regedit" (without quotations) and click ok. registy window will pop up. Go to File - Export and save to a location of your choice. 1)Delete the follwing folders and its contents ( if found) in the : HKEY_LOCAL_MACHINE\SYSTEM\CURRENTCONTROLSET\ENUM\USB\Vid_xxxx Note:You need to set permission to delete the folder Vid_xxxx Right Click on the Vid_xxx and set permission and then do the delete. 2)Go to: HKEY_LOCAL_MACHINE\SYSTEM\CURRENTCONTROLSET\HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services Check if there is a key name USB, if its not there then create a new key USB If key found check for any DWORD value name as DisableSelectiveSuspend if found then set its dword value as 1. If not found, then create a new DWORD value and name it: DisableSelectiveSuspend Add the value as 1 to it. 3) Check for any chipset driver/inf update available for your motherboard. If found any, do a update them. To know what motherboard and chipset your system has, go to http://www.cpuid.com/ and download the cpuzid utility. a simple good utility to identilfy the chipset and etc. Using the info you can google for the chipset updates. 4) Restart your computer after all these been done. Restart even if there is no chipset drivers to update. 5) go to Start - Run and type in :"devmgmt.msc"(without quotation)and click OK. Device Manager will pop up. 5) In the Device Manager, scroll down to usb serial bus controller. uninstall everthing you see there. 6) now scroll to system devices ( pls note in the System devices, the names may not be exactly the same as listed below)You will be prompted at certain uninstallation to restart, dont restart, keep uninstalling all those in the system devices. At times while you are uninstalling, u will see some getting installed again. No worries. Here is the folowing to uninstall from the System devices: PCI Bridge SMBus controller Microcode Update Device PCI bus Plug and Play Software Device Enumerator System board 7)Once all these is done, restart you pc. Let the system update and install for hardware found automatically. 8)Once all is done, restart your computer again 9) wait for the system to settle down with all the windows start up process. after a while, plug in your USB device. 10) Windows will detect it perfectly and you wont see the "USB Device Not Recognized". I hope this will help to resolve the USB Device Not Recognized issue for everyone as it has done for me. I took this step after trying and failing on many solutions found in the net even ms soultions didnt work. But I have added them as a step so that every area is covered for this issue. Thanks and regards, chandra