Windows 11 has stricter driver signature enforcement and removed legacy NDIS 5.x support that some older QF9700 drivers relied on. Consequently, the generic Microsoft driver installed automatically may cause or Code 52 (Driver not signed) errors.
Windows 11 does not include a native inbox driver for the QF9700. You must manually install a compatible driver.
Reboot normally. The driver will remain working. You do not need to keep signature enforcement disabled.
Windows 11 requires all drivers to have a valid digital signature. If your QF9700 driver triggers a Code 52 error, you must temporarily disable driver signature enforcement to install it.
Extract the contents of the downloaded archive to a dedicated folder on your desktop (e.g., C:\Users\YourName\Desktop\QF9700 ). Step 2: Access Device Manager Right-click the Windows icon. Select Device Manager from the pop-up list.
Step-by-Step: Installing Network Adapter Driver on Windows 11
Once you have the driver files extracted to a folder on your PC, install them manually: Right-click the icon and select Device Manager .
Why Windows 11 Doesn't Recognize the VK-QF9700 Automatically
Navigate to the extracted folder, select the .inf configuration file matching your architecture (usually x64 for Windows 11), and click .
Check the box for . Select Windows 8 or Windows 10 from the dropdown. Check the box for Run this program as an administrator . Click Apply and OK , then run the installer. Troubleshooting Common Issues Code 10 or Code 43 Errors
To install the (also known as the QF9700 USB 2.0 to Fast Ethernet Adapter
If the driver is installed but the adapter still doesn't work:
There is no official signed driver from VK or MosChip. But the community has kept this chip alive using an driver originally from the manufacturer "CoreChips."
After downloading the driver, you can install it manually via Device Manager: right-click the device, select , then Browse my computer for drivers , and point it to the folder containing the driver files you downloaded (e.g., from the GitHub repository).