My usb`s is not working what can i do to fix them please?
when i put a device like a pen drive a dialog window upears and said that
Usb device not recognized, one of the usb devices attached to this computer has malfunctioned and windows does not recognize it.
i try the device on the 4 port no one is working
Get this prog and activate all your usb devices. it worked for me, unlocking my externeal hdd drive too
USBDeview v1.30 Copyright (c) 2006 - 2009 Nir Sofer Web Site: http://www.nirsoft.net
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I am sorry to hear that your USB pen drive got a virus. If the message you get when you are cleaning or reformatting the drive is password protected, the drive is very much finish. I would suggest you to buy a new one.
click start control panel
administrive tools computer management device manager scroll down universal
serial bus controllers you should see a yellow question mark? right click to reinstall
drivers if you can see your usb
drive but its not working ports(com&lpt)right
click update driver click start click on my
computer you should see your pen drive right click then select
format another way is to control panel administrive tools computer management
disk management right click on your drive select format
USB drives can be write-protected by modifying the
StoreageDevicePolicies Registry key and WriteProtect Registry value.
click Start>run>regedit to open Registry Editor. and press control+F to
open the find dialogue box and type "usb device" or
"driverdesc" to open usb mass storage device or type "usb mass
storage device" in the search windows. And right click on it and delete.
This will set the policy value to 0. then insert your usb device. It will work
# Remember: do not delete any unknow files in the registry as this will make
some programes not work as usual. also
If you are running a Windows XP OS then you might be able to:
- click start right click on my computer select open
- Right click the icon of your Flash Drive (It should be F:/ or something)
- Click Properties in the menu that comes up
- Click the Sharing tab
- Click permissions
- And finally, click Allow next to Full Control. hope this helps
If you are not dismounting your pen drive before removing it, you run the risk of wiping out the contents of the pen drive. You didn't mention that you were dismounting it before removing it, which is why I suggest that this may be the problem. The way to properly dismount a drive or any other USB device is to go to the lower right hand corner of the PC screen and look at all of the icons for the one that says "Safely Remove Hardware", click it and then follow the instructions. Under Windows Vista, the Icon has a small white checkmark in a green circle, but other versions of Windows may have a different icon.
there is a corruption in your pen drive...try to connect to some other PC/laptop and if working there format it and then use in you PC....
pen drives are very sensitive to shakes and shocks....we misuse pendrives by rough handling....so they will get corrupted often...
i suggets use a re-writable DVD disk of say 4.7 GB insted of usb stick ....it costs less and also does not get infected by virus....
i have stoped using mem sticks....i use DVD RW disks....
hi, please check the device manager if USB is enabled there to go to device manager start menu > run > type in without quotes"devmgmt.msc" > the device manager look for usb (universal serial bus controllers)
if they are ok ( there shouldn't be any exlamation sign next to any usb device check expanding the title for universal searil bus controller) neither they should be disabled no cross should be there next to them
then go to computer management by going to
start menu > rin > type in without quotes 'compmgmt.msc' > removable storage > right click > properties > security > use, control, modify should be allowed for your user name
if this is also right click on disk management in same window and then insert the usb drive in check if it detects and show here, if it shows format the drive as fat
and now when you insert it the next time it will show automatically
if any of the above doesn't work
restart the system and then press F2 /delete key (whichever applicable in your case) to enter bios at mercury logo and check here if usb is enabled or not. if disabled enable it and follow the above steps again.
Further Queries are welcome if you think my answer was helpfull please do rate me
when you put a device on the usb slot the system will detect and check what is the device then after it identifies the device it will load the necessary drivers for it. it is possible that the system is loading a corrupt driver to drive the usb device resulting to a system halt. it could be a driver related in storage devices such as thumb drives that is causing the problem.
try to update the usb drivers using the update driver option on your device manager on usb controller.
You shouldn't need the USB driver 2.0 from mercury because windows installs this with SP2. Suggest you un-install what you installed from mercury & update your version of windows (completley), through "Windows Update". Once windows is all updated & you have finished with a reboot. Plug your pen drive in a opened usb port. Open windows explorer. Scroll down & you should see an icon (left side of explorer), thats named like, Removable Disk. Give windows time to see the device. After a few minutes if your pen device does not show up try another usb port. One you know does work. If after a couple of minutes go by & you still don't see the device listed in explorer I would say the device is defective. Your Mp4 uses a cable to connect to the usb. Try connecting to another PC's usb port. It is possible the cable is dirty or bad.