Realtek Rtl8139 Driver 810x Family Pci-e Gigabit Windows 10 New! Jun 2026

If your chip is a card, it is likely an RTL8111/RTL8168 , not an RTL8139.

Driver options and notes:

You can download the appropriate drivers from the following sources, ensuring you get the version compatible with Windows 10 64-bit or 32-bit:

Here are the main sources for the official driver:

Have you struggled with other legacy drivers on Windows 10? Let us know in the comments below.

The history of Realtek drivers with Windows 10 has had some well-documented issues, but in most cases, they are fixable.

: This is the safest source for verified legacy drivers. You can search for "RTL8139" or "810x" on the Microsoft Update Catalog to find compatible versions.

Microsoft and Realtek often bundled these drivers together in a single package named something like rt640x64.inf or netrt64.inf . This is why Windows 10 might try to install an RTL8139 driver for your 810x PCI-E Gigabit card—or vice versa—leading to blue screens, limited connectivity, or "Ethernet doesn't have a valid IP configuration."

Driver conflict or power management fault. Fix:

For the vast majority of users searching for the "Realtek RTL8139 driver 810x family pci-e gigabit windows 10," the solution lies in the unified Realtek Gigabit Ethernet driver for Windows 10. With a little patience and this guide, you can ensure your wired network connection remains stable, fast, and reliable for years to come.

You have a PCI-E Gigabit controller. Do not settle for 100 Mbps.

Windows 10 often tries to install a generic Microsoft driver, but it fails due to legacy INF (information) file mismatches. The good news? A working driver does exist.

One important limitation: neither the RTL8139 nor the 810x family supports fully in older hardware revisions. Windows 10’s heavy reliance on IPv6 (for Cortana, Store, and updates) can increase CPU usage slightly—by 2–5%, barely noticeable on modern CPUs.

Because Microsoft stopped signing 32-bit legacy drivers after Windows 8. You must disable driver signature enforcement (temporary, for testing) or upgrade to a 64-bit system with a newer driver.

Troubleshooting checklist:

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