Windows 7 Forums

Welcome to Windows 7 Forums. Our forum is dedicated to helping you find support and solutions for any problems regarding your Windows 7 PC be it Dell, HP, Acer, Asus or a custom build. We also provide an extensive Windows 7 tutorial section that covers a wide range of tips and tricks.


Windows 7: No USB devices work, at all!

06 Mar 2010   #1
Dog782

Windows 7
 
 
No USB devices work, at all!

I do not know what happened, but it seems as if my computer does not recognize any USB device! From my iPod touch to my USB stick. It just happened recently and I have no clue what happened. I'm running on 32-bit Windows 7 Intel(R) Pentium(R) Dual CPU E2140 @ 1.60 GHz 1.60 GHz and 2 GB RAM. Please help!!!

I have also tried it using different USB ports and it comes to the same problem, "USB Device not recognized" and on device manager it shows it as an "Unknown Device".


My System SpecsSystem Spec
.
06 Mar 2010   #2
karlsnooks

MS Windows 7 Ultimate SP1 64-bit
 
 

Win key | type DEVMGMT.MSC | Enter key

Are there any Yellow question marks or red X's?

Did you recently play around in the bios?

Disconnect all usb devices.

Plug in one and only one usb stick. Does the USB stick show up when you: Win Key | Computer
My System SpecsSystem Spec
06 Mar 2010   #3
Dog782

Windows 7
 
 

Nope. All it shows is:



I only have the USB stick plugged in.
My System SpecsSystem Spec
.

06 Mar 2010   #4
karlsnooks

MS Windows 7 Ultimate SP1 64-bit
 
 

That screen shot indicates that you have a USB mass storage device connected.

Please disconnect ALL usb devices, even a USB mouse if you are using one.

Now restart your computer.

Do not plug any usb devices in.

Go to device manager again.

Does it show any yellow or red markings?


.
My System SpecsSystem Spec
06 Mar 2010   #5
Dog782

Windows 7
 
 

Thanks!! I just uninstalled the 'USB Mass Storage' and now it works perfectly!

+ Rep added.
My System SpecsSystem Spec
07 Mar 2010   #6
neo101

WIN7 Ultimate 64bit
 
 

for follow up readers
As karlsnooks says unplug all usb devices then

another way of curing this is to switch off at wall/unplug your power.supply.unit from electric (or detach elec. lead from psu) for a minute/till light goes out on motherboard - this clears/resets the usb chipset? if it's got it's knickers in a twist!
My System SpecsSystem Spec
Reply

 No USB devices work, at all!




Thread Tools




Similar help and support threads
Thread Forum
No USB headphones work on this computer, they ARE in playback devices
The headphones all work for other computers. When I open playback devices, the headphones appear as "speakers", "USB PnP Sound Device", and "Ready". Where there is usually a volume bar is blank, no bar. I am unable to set the device as default, when I select that option nothing happens. I know...
Sound & Audio
internet does not work on laptop but works on other devices
I am having an issue that has been an on and off problem for the past month. I currently am using a browser called torch which is a chrome style browser. But my main browser is firefox. Whenever firefox is open I cannot browse the web and when I try web pages do not load on any browser that I try...
Network & Sharing
Installing Windows 7 Ultimate makes some devices not to work
hello forum, i recently installed windows 7 Ultimate on another hard drive to dual boot with my windows 7 Home Premium (Dont bother asking why) And when it finished the installation, it logged on correctly, but now the wifi doesnt work (wifi light isnt even on when the wifi cord is pluged in), also...
Installation & Setup
Win7 64-bit: suddenly won't print; devices work fine
Windows 7 64-bit Canon MP610 USB printer Test Page works fine for the Canon Printer; it takes a long time but Test Page also works for Acrobat; works quickly for XPS Document Writer. I honestly don’t know where to go next. I think the problem is in how Windows communicates the print...
General Discussion
Some USB mass storage devices don't work
They work in my other PC's though. When I plug them in, it fails to install the driver and in the device manager they are listed as Generic USB2.0 card (The drivers for this device are not installed. (Code 28)). I have the latest motherboard drivers/BIOS. (My system specs are filled in for...
Hardware & Devices
XP only Devices won't work under Windows 7
“Good luck finding drivers for all your old XP-only hardware.” Over the past few months, I’ve installed and used Windows 7 on a dozen separate systems, representing a wide range in hardware capability and all sorts of different form factors. Virtually every one of those systems had also run Windows...
Drivers


Our Sites

Site Links

About Us

Find Us

Windows 7 Forums is an independent web site and has not been authorized, sponsored, or otherwise approved by Microsoft Corporation. "Windows 7" and related materials are trademarks of Microsoft Corp.

© Designer Media Ltd

All times are GMT -5. The time now is 01:55.

Twitter Facebook Google+



Windows 7 Forums

Seven Forums Android App Seven Forums IOS App