Fix USB Not Working Error Code 39: If you are trying to use USB devices such as pen drive, keyboard, mouse or portable hard disk but none of them are detected on your PC then this means there is some problem with your USB Port. But in order to verify this is the case here, you need to first test the USB device on another PC to confirm they are working on that system. Once it’s confirmed that the device works on other PC then you can be sure that USB doesn’t work on your PC and in order to get more information head to device manager. Expand Universal Serial Bus controllers and right-click on the device which has a yellow exclamation mark next to it and select Properties. In the properties following error description will appear:
Windows cannot load the device driver for this hardware. The driver may be corrupted or missing. (Code 39)
Now the error code 39 means the device drivers are corrupted, outdated or incompatible which in turn is caused due to corrupt registry entries. This can happen in case you have upgraded your Windows or you have installed or uninstall some USB software or drivers. So without wasting any time let’s see how to Fix USB Not Working Error Code 39 with the help of below-listed troubleshooting guide.
Fix USB Not Working Error Code 39
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Method 1: Delete UpperFilters and LowerFilters registry keys
1. Tryk på Windows-tasten + R knappen for at åbne dialogboksen Kør.
2. Skriv regedit in the Run dialogue box, then press Enter.
3.Now go to the following registry key:
HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlClass{36FC9E60-C465-11CF-8056-444553540000}
4.In the right pane search for UpperFilters and LowerFilters.
Note: if you can’t find these entries then try the next method.
5.Slette both of these entries. Make sure you are not deleting UpperFilters.bak or LowerFilters.bak only delete the specified entries.
6.Exit Registry Editor and restart the computer.
This should probably Fix USB Not Working Error Code 39 if not, then continue.
Metode 2: Opdater USB-drivere
1. Tryk på Windows-tasten + R og skriv derefter devmgmt.msc og tryk Enter for at åbne Enhedshåndtering.
2.Udvid Universal Serial Bus controllere then right-click the USB device with yellow exclamation and select Opdater driver.
3.Then choose Søg automatisk efter opdateret driversoftware.
4.Reboot your PC to save changes. If the problem still persists then follow the next step.
5.Again select Update Driver Software but this time choose ‘Gennemse min computer til driver software.'
6.Next, at the bottom click ‘Lad mig vælge fra en liste over ledige drivere på min computer. '
7.Select the latest driver from the list and click Next.
8.Let the Windows install drivers and once complete close everything.
9.Reboot your PC to save changes and you may be able to Fix USB Not Working Error Code 39.
Method 3: Run Hardware and Device troubleshooter
1.Press Windows Key + X and click on Kontrolpanel.
2.Search Troubleshoot and click on Fejlfinding.
3. Klik derefter på Se alt i venstre rude.
4.Click and run the Troubleshooter for Hardware and Device.
5.The above Troubleshooter may be able to Fix USB Not Working Error Code 39.
Method 4: Uninstall USB Controllers
1. Tryk på Windows-tasten + R og skriv derefter "devmgmt.msc” og tryk på Enter for at åbne Enhedshåndtering.
2.Expand Universal Serial Bus controllers then right-click the USB device with yellow exclamation and select Uninstall.
3. Vælg Ja, hvis du bliver bedt om bekræftelse.
4.Reboot to save changes and Windows will automatically install the default drivers for the USB.
Method 5: Disable and Re-enable the USB controller
1. Tryk på Windows-tasten + R og skriv derefter devmgmt.msc og tryk på Enter for at åbne Enhedshåndtering.
2.Udvid Universal Serial Bus controllere i Enhedshåndtering.
3.Now right-click on the first USB-controller og klik derefter på Afinstaller.
4.Repeat the above step for each of the USB controller present under Universal Serial Bus controllers.
5.Reboot your PC to save changes. And after the restart Windows will automatically reinstall alle USB -controllere that you uninstalled.
6.Check the USB device to see whether it is working or not.
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