Fix USB Port Error Code 39 Windows 11/10/8/7 | The Driver May Be Corrupted or Missing (Code 39) | BTM Software

Follow the steps in the below to edit the registry.

Step 1: Press Win key and R key on the keyboard simultaneously to open the Run box.

Step 2: Input “regedit” in the Run box and press Enter to open the Registry editor. Click Yes when prompted to confirm the program launch.

edit registry

Step 3: Navigate to the path: HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\ Control\Class\ and find the next path according to your problematic device. The table below listed the path for some common devices.

Device

Class

GUID

DVD/CD-ROM drives

CDROM

4D36E965-E325-11CE-BFC1-08002BE10318

Disk drives

DiskDrive

4D36E967-E325-11CE-BFC1-08002BE10318

Display adapters

Display

4D36E968-E325-11CE-BFC1-08002BE10318

Floppy drive controllers

FDC

4D36E969-E325-11CE-BFC1-08002BE10318

IDE ATA/ATAPI controllers

HDC

4D36E96A-E325-11CE-BFC1-08002BE10318

Keyboards

Keyboard

4D36E96B-E325-11CE-BFC1-08002BE10318

Sound, video and game controllers

MEDIA

4D36E96C-E325-11CE-BFC1-08002BE10318

Modems

Modem

4D36E96D-E325-11CE-BFC1-08002BE10318

Monitors

Monitor

4D36E96E-E325-11CE-BFC1-08002BE10318

Mice and other pointing devices

Mouse

4D36E96F-E325-11CE-BFC1-08002BE10318

Network adapters

Net

4D36E972-E325-11CE-BFC1-08002BE10318

Ports (COM & LPT)

Ports

4D36E978-E325-11CE-BFC1-08002BE10318

Printers

Printer

4D36E979-E325-11CE-BFC1-08002BE10318

Storage controllers

SCSIAdapter

4D36E97B-E325-11CE-BFC1-08002BE10318

System devices

System

4D36E97D-E325-11CE-BFC1-08002BE10318

Other devices

Unknown

4D36E97E-E325-11CE-BFC1-08002BE10318

Floppy disk drives

FloppyDisk

4D36E980-E325-11CE-BFC1-08002BE10318

IEEE 1394 Bus host controllers

1394

6BDD1FC1-810F-11D0-BEC7-08002BE2092F

Imaging devices

Image

6BDD1FC6-810F-11D0-BEC7-08002BE2092F

Human Interface Devices

HIDClass

745A17A0-74D3-11D0-B6FE-00A0C90F57DA

Bluetooth Radios

Bluetooth

E0CBF06C-CD8B-4647-BB8A-263B43F0F974

Please check the device from the Data in the registry values as below to make sure you edited the correct device registry.

edit-registry-values.jpg

Step 4: After you located the correct path for the device, please delete the values for the following registry keys: LowerFilters, LowerFilters.bak, UpperFilters, UpperFilters.bak.If there is no UpperFilters or LowerFilters in the registry, this method is not for you.

Step 5: Close the registry editor and restart your computer.

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