Question

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error code 43 when USB not recognised

laurencewithau asked on

I have a Windows 7 pc, a laptop running XP and a USB flash drive that I would like to use to back up files. It works on the laptop, and it did work first of all on the pc. But now I get a message saying device not recognised due to malfunction of device. And in device manager I'm told that it's an error 43 code. I'd be grateful for any advice; also, should I try buying a new memory stick/flashdrive exclusively for the pc? I've tied uninstalling the device and restarting the computer, but to no avail.

thanks,
laurencewithau

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Answer

LittleDevil501 replied on

Hello laurencewithau,

Error Code 43 is a Device Manager error that means the following:

Windows has stopped this device because it has reported problems. (Code 43)

When you get this error with USB devices it’s because one of the drivers controlling the device notified the operating system that the device failed in some manner. This can be because of corruption in one of the loaded drivers and the driver cache just needs to be flushed. Unplugging the computer sometimes doesn’t resolve the problem because the battery still holds power. To fix this, unplug all of your USB devices, then turn off the PC and take out the battery (This is assuming that you’re on a laptop), let the PC set for about 5 minutes, then put the battery back in and restart the PC. Next, plug your USB devices back in one at a time and make sure that they work.

If this does not work or you’re on a desktop, follow the steps in this KB article

Error: “USB Device not recognized” when you try to access a USB external hard drive.

(Mainly methods 3, 4,and 5)

Thanks

L.D.

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Answer

WDaytonTurner replied on

As I have mentioned periodically on this forum: quite often, the problem arises because a USB connected device has not been properly ejected. The problem can be rectified merely by plugging the device into a different computer, letting it load up and then properly ejecting it. You can then take it back into the other computer and it will work. This is a problem if you are limited to accessing only the one computer that is showing the error.

3 people found this helpful

All replies (89)

deadmanwalking86 replied on

Have you run the troubleshooter?

Click Start > type Troubleshooting > Configure a device under Hardware and Sound.

Code 43

Windows has stopped this device because it has reported problems. (Code 43)

Recommended resolution

One of the drivers controlling the device notified the operating system that the device failed in some manner.

If you have already run the Troubleshooting Wizard, you might want to check the hardware documentation for more information about diagnosing the problem.

Cheers!

'Tis all a chequer board of nights and days,
Where destiny with men for pieces plays;
Hither and thither, and mates, and slays.

In a world without walls and fences, who needs Windows and Gates?! Life sucks! Get used to it!

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laurencewithau replied on

thanks for the advice. Yes, I've run the troubleshooter and I've uninstalled and restarted, and so on. When I googled error 43 I saw adverts for repair kits for that error code, and also for programs that install all the latest drivers. I just wondered if it's worth trying them, or if they are to be avoided

21 people found this helpful

Bruce Helmke replied on

I tried and had no luck. Just another Microsoft extortion racket.

17 people found this helpful

echoview replied on

I also am running into this problem on a laptop. It is not a problem with the device as it works fine on my desktop with the same operating system. Any help would be appreciated as the usb ports don't recognize anything since this occured.

16 people found this helpful

Mark [MSFT] replied on

Microsoft

Hello,

If you're seeing a code 43 for one of your USB devices or a USB controller/root hub, some additional information is needed to diagnose this issue. I'll need you to capture a USB trace for me please.

1) Reboot the machine and get the devices in a working state.

2) Run this command from an elevated command prompt (right click on command prompt shortcut, select "run as administrator"):
Logman start USBForumTrace -p Microsoft-Windows-USB-USBPORT -o USBForumTrace.etl -ets -nb 128 640 -bs 128

3) Run this command from an elevated command prompt:
Logman update USBForumTrace -p Microsoft-Windows-USB-USBHUB -ets -nb 128 640 -bs 128

4) Do whatever steps are required to make the problem happen (other than a reboot...if you reboot at this point, the tracing won't be enabled).

5) After you have a repro, run this command from an elevated command prompt:
Logman stop USBForumTrace -ets

6) Search on the machine for “USBForumTrace.etl”

7) Post that file and c:\windows\inf\setupapi.dev.log on a public folder on http://skydrive.live.com and post the link here.

For more details on setting up a skydrive account, see the posts from Vivian Xing in this thread: http://social.technet.microsoft.com/Forums/en/w7itprohardware/thread/d2602df5-e2bf-45b5-a26a-2866707dfcf9#782ec895-33db-49e4-bb70-534214235a91

Thanks,
Mark

Want to know if your current hardware & software will work with Windows 7? Check out these links: **Windows 7 Upgrade Advisor ** **Windows 7 Compatibility Center**

7 people found this helpful

Daniel_Spain replied on

Hello,

I have the same problem. I followed the steps you instructed and here is the link.

http://cid-bb87366c210c3d6c.skydrive.live.com/browse.aspx/.Public

3 people found this helpful

Bob in SF replied on

OKAY - found this on another forum - I had a major error 43 problem and nothing would work off the USB's. The suggestion was that it is a motherboard issue and shutting down the computer does not allow it to reset. So, unplug the computer and then take out the battery for a minute or so and then restart. This worked for me. Had to replug each usb device and restart each time until it reinsalled as normal. Hope it works for you, it saved me a lot of aggravation and money.

10 people found this helpful

Bob in SF replied on

I had a major problem with none of my usb's bein recognized. I finally found a suggetion which worked immediately. It was unplug the computer and then take out the battery. Let it sit for a few minutes and then replug everthing in. It was a motherboard issue which will not reset by simply turning off the computer - need to cut power for it to reset.

5 people found this helpful

hayderslade replied on

Could you please rephrase this answer so that computer laymen can understand it. It would be very appreciated.

7 people found this helpful

Bob in SF replied on

Ok - not sure how much simplier I can make it, but - on a laptop, unplug the power cord, then take out the battery, unplug all usb devices, leave it alone for a minute or two and then replug the power cord and then the battery. Turn the computer on and restart as normal. replug in your usb devices and they will reinstall as usual.

23 people found this helpful