The error code 43 or 47 with a USB occur when Windows does not recognize or fail for various reasons. In those cases you will see one or more of these announcements style:
- Windows has stopped this device because it has reported problems (Code 43)
- The USB device is not recognized
- Windows can not use this hardware device because it has been prepared for "safe removal", but has not yet been removed from the computer. (Code 47)
Test solutions in order below. Try the following if the above does not resolve the fault:
SOLUTION 1: Check that the USB is connected
Sometimes the problem is due to something as simple as having the wrong connected flash drive, drive, printer or USB device to be. First disconnect the USB safely (follow the steps in this link if you do not know how).
Then connect it again making sure you do it right. NOTE: When what is a USB printer fails, check both the connection to the PC and the printer itself.
Solution 2: Try another connector
Disconnect the USB safely as you saw in the previous solution. Then, if possible, connect to a connector (port) USB other than the above.
Solution 3: Clear the cache drivers
This cache is like a history of the drivers or drivers loaded. Sometimes those mistakes and cause damage or other. Follow these steps to empty and allow the driver to be reinstated:
- Turn off the PC. You have to turn it off entirely. DO NOT reenicies.
- Disconnect all USB you may have connected. Especially the one that fails.
- Disconnect the device from the mains. You must do it "physically", removing the plug from the wall. IMPORTANT: If your PC is a portable laptop, remove the battery FURTHER off power.
- Wait about 5 minutes off and disconnect the PC (with battery removed). Then reconnect the unit to the mains, (insert battery again) and turn it on.
- Wait for Windows to load completely. Then connect one by one USB that are, starting failing. Do not connect other USB until Windows has detected and automatically loaded in the previous drivers (you usually see a message like that the device is ready for use).
- Check whether the error is resolved. Otherwise, read on ...
Solution 4: Uninstall the USB driver
The goal is to do that again to reinstall Windows alone. Do this:
- Connect the USB gives you error.
- Enter the menu Start Windows. Do as appropriate according to your version:
- In Windows 7 and Vista . Write devmgmt.msc in the search field on the Start menu and press Enter .
- In Windows 8, 8.1, 10 and XP . Select Run in the Start menu. Writedevmgmt.msc in the "Run" window and press Enter .
NOTE:
If you lack, go here how to enter the Windows 8 Start . In Windows 8.1, go to theDesktop normal and then click with the right button on your menu Home to chooseRun .
- In all you enter the Windows Device Manager. Search the list category universal serial bus controllers and double click on it to see what it contains. Are the elements of your PC USB in.
- Locate the USB who fails the list. Typically you have at hand a mark of some kind.As a yellow triangle with an exclamation point or something similar. It may appear as "Unknown Device" or "Unknown device". Click on it with the right mouse button and choose Uninstall .
- Restart the PC, wait until Windows detects the USB and reinstall your drivers. And then see if it works.
If the problem persists, try this:
- Follow the same steps 1 to 3 you just saw. Looking now at the list of items that category USB USB Host Controller are called enhanced or USB Enhanced Host Controller.
- Locate the driver of that type (improved or enhanced) having a mark error. Click above the right mouse button and select Disable . IMPORTANT: If no error hander, disable all USB drivers of improved (or enhanced) you have on the list.
- Restart your PC and see if the fault is resolved.
Solution 5: Update the drivers of the motherboard
The problem may be that the related USB are not correct or are outdated. Follow the steps in this link to download Hand-site manufacturer of your motherboard or motherboard.
Solution 6: Change Power Options
The idea is to choose the "high performance". Click on the appropriate link:
- In Windows 7 or Vista
- In Windows XP
- In Windows 8 or 8.1
- In Windows 10
Solution 7: Repair damaged Windows files
Use the SFC tool that comes with Windows to make a check and automatic repair of damaged system files .
SOLUTION 8: Put Windows update
Follow the instructions on the link that corresponds according to your version. Install both important and optional updates.
- Update Windows 7 (Vista is similar)
- Using Windows Update in Windows 8 or 8.1
- In Windows 10
- In Windows XP: Step into Start -> Windows Update and follow the instructions on the page to update.
Solution 9: Restore the system
There are programs, drivers or updates that may affect the proper operation of your USB.This solution is useful for those cases. Restore the system to a point (Restore Point) just before he began to take the USB error.
SOLUTION 10: Repair Windows
- Repair Windows 7
- Windows XP
- Windows 8
- Windows 8.1
- Windows 10
SOLUTION 11: repair or replace the USB device
Connect the USB fails on another computer and see if it works. If not, and if none of the above worked, it is likely that the device has a physical problem. In that case you may need to replace or repair a service.