PIA 3.8.0 for Windows: WireGuard-NT and OpenVPN DCO Promise Faster VPN Speeds

As reported by TechRadar and confirmed in PIA's official client changelog, version 3.8.0 claims that moving to the WireGuard-NT 1.1 kernel driver can increase WireGuard throughput by "more than 3x on higher-bandwidth systems". At the same time, the update shifts WireGuard from an opt-in setting to the default protocol for new installations across all platforms, while giving longtime OpenVPN holdouts a serious Windows kernel upgrade of their own.

Before you expect your modest home broadband connection to suddenly break the sound barrier, however, it helps to examine what these kernel drivers actually do inside Windows, who will actually see those massive speed multipliers, and why existing users might not notice any change at all unless they check their settings.

Moving VPN Traffic Into the Windows Kernel​

To understand why a driver swap can drastically alter throughput on a Windows PC, we have to look at the age-old bottleneck of user-space versus kernel-space networking. Historically, many VPN clients on Windows relied on virtual network adapters operating alongside user-space processes. Every time a packet arrived, the Windows kernel had to hand that packet over to a user-space application for encryption or decryption, and then pass it back to the kernel's network stack to be sent on its way.

On a basic 50 Mbps or 100 Mbps connection, modern CPUs barely notice this constant context-switching back and forth across the user/kernel boundary. When you scale up to gigabit or multi-gigabit fiber connections, however, that overhead becomes a massive traffic jam. Your processor spends an outsized share of its cycles acting as a middleman rather than moving data.

WireGuard-NT 1.1 on Windows​

According to official WireGuard project documentation, WireGuardNT is a native implementation of the WireGuard protocol built specifically for the Windows NT kernel, maintained by WireGuard creator Jason A. Donenfeld and Simon Rozman. By moving the cryptographic processing and packet handling directly into the Windows kernel, WireGuard-NT eliminates those expensive context switches between user space and kernel space.

In PIA v3.8.0, the Windows client upgrades to the WireGuard-NT 1.1 kernel driver. PIA states in its release notes that this change boosts WireGuard speeds by more than threefold on higher-bandwidth systems.

Notice that critical qualifier: "on higher-bandwidth systems". This is a vendor performance claim without published benchmark methodology in the changelog, and it cannot override the physical limits of your ISP plan. If you pay for a 100 Mbps cable connection and previously achieved 90 Mbps over WireGuard, no kernel driver on earth is going to push your line to 300 Mbps. Where kernel-level packet processing actually shines is on fast fiber connections (500 Mbps, 1 Gbps, and above) or on portable Windows devices where reducing CPU overhead translates directly into cooler thermals and better battery life during heavy file transfers or high-bitrate streaming.

OpenVPN Data Channel Offload (DCO)​

While WireGuard gets top billing for its lean codebase and lower CPU utilization, OpenVPN remains a staple for enterprise networks and users who prefer its mature configuration options. Historically, OpenVPN has trailed WireGuard in raw throughput, largely because of the exact user-space packet-shuffling penalty described above.

To narrow that gap, PIA v3.8.0 introduces the OpenVPN DCO kernel driver for Windows. In PIA's release notes, the company explains that OpenVPN DCO can be selected as the virtual network driver for OpenVPN connections and can boost connection bandwidth by "2x or more, depending on the system and connection." Much like WireGuard-NT, Data Channel Offload moves the heavy lifting of OpenVPN's data channel encryption into the kernel, leaving the traditional user-space software to handle only the initial handshake and control channel duties.

Section Summary:

• WireGuard-NT 1.1: Runs WireGuard inside the Windows NT kernel, with PIA claiming over 3x faster speeds on higher-bandwidth setups.
• OpenVPN DCO: Adds a selectable kernel-level virtual network driver for OpenVPN on Windows, claiming 2x or greater bandwidth improvements depending on hardware and network conditions.
• The Reality Check: Neither driver increases your base ISP speed; the gains come from removing CPU and OS context-switching bottlenecks on high-speed connections.

The Upgrade Catch: New Installs vs. Existing Windows Setups​

One of the biggest usability shifts in PIA v3.8.0 is making WireGuard the default protocol across all platforms. Just days before this release, a Gizmodo review of PIA pointed out that keeping the slower OpenVPN protocol as the out-of-the-box default was holding back everyday Windows users who never thought to dig into the settings menu. PIA has now addressed that exact friction point—with one important caveat buried in the phrasing.

According to PIA's official changelog, WireGuard is now the default protocol for new installations.

If you are installing PIA from scratch on a fresh Windows 11 PC, you will automatically start on WireGuard with the WireGuard-NT 1.1 driver. However, if you are upgrading an existing PIA installation that was previously using the default OpenVPN configuration, the changelog gives no indication that the updater will forcibly overwrite your saved protocol preference. Likewise, the new OpenVPN DCO driver is described in the patch notes as "selectable as the virtual network driver for OpenVPN."

If you want to make sure your Windows machine is actually using these new kernel drivers after updating to v3.8.0, you should manually verify your configuration:

1. Confirm your app version: Ensure your PIA desktop client has updated to v3.8.0 (build 08539).
2. Disconnect the VPN: PIA requires you to disconnect from an active VPN session before modifying protocol or network driver settings.
3. Check your active protocol: Open the PIA settings menu and navigate to the Protocol page. If you want the fastest general-purpose performance and the WireGuard-NT 1.1 driver, select WireGuard.
4. Configure OpenVPN DCO (if using OpenVPN): If you prefer to stick with OpenVPN, stay on the configuration settings and check the virtual network driver selection to switch onto the new OpenVPN DCO kernel driver.
5. Test on your own hardware: Because PIA does not publish a compatibility matrix or formal benchmark suite in its release notes, run a before-and-after throughput test on your specific Windows system and local network to verify stability.

Cross-Platform Additions: AmneziaWG Obfuscation (With a Catch for Windows)​

Alongside the Windows driver upgrades, PIA v3.8.0 introduces the AmneziaWG (WireGuard Amnezia) driver to obfuscate WireGuard traffic. While standard VPN encryption hides the contents of your traffic, network administrators and restrictive regional firewalls can easily identify WireGuard's distinct packet signatures and block the connection outright. AmneziaWG disguises those packet headers so the traffic blends in rather than screaming "I am a WireGuard tunnel".

Here is the catch for our readers: according to PIA's changelog, the new WireGuard Amnezia driver in v3.8.0 is only available on Linux and macOS. On those two operating systems, users can enable it by visiting the Protocol page, choosing WireGuard, and toggling on Obfuscation. Windows users do not receive the AmneziaWG driver in this release.

Rounding out the patch notes, PIA also squashed a macOS-specific bug where the client application could hang indefinitely if a user left the split-tunnel system extension setup incomplete inside macOS System Settings.

Installers, Architecture Support, and Network Context​

For system administrators and security-conscious Windows users who prefer to verify their binaries before executing an installer with kernel-driver privileges, PIA provides official packages for both Windows 64-bit (x64) and Windows ARM64 (alongside macOS, Linux x64, and Linux ARM64 builds), though no 32-bit x86 Windows installer is listed for v3.8.0.

Per PIA's official changelog, the Windows installer packages and their corresponding SHA-256 checksums for v3.8.0 are:

You can verify a downloaded installer in Windows PowerShell before running it by executing Get-FileHash.\pia-windows-x64-3.8-08539.exe -Algorithm SHA256 and comparing the output against the table above.

This client release follows a broader push by the Colorado-based provider over recent months to modernize its infrastructure. Earlier in July 2026, PIA rolled out backend routing, capacity, and reconnection logic updates aimed at improving connection reliability and reducing repetitive CAPTCHA prompts, and TechRadar notes the company also recently added 10 server locations across the Americas, the Middle East, Africa, and Australia, as well as an F-Droid package for de-Googled Android devices.

For Windows users, however, v3.8.0 is where the rubber actually meets the road. While the "triple speed" headline should be read strictly as a best-case scenario for high-bandwidth connections that were previously bottlenecked by user-space packet handling, adopting WireGuard-NT 1.1 and OpenVPN DCO brings PIA's Windows networking stack squarely up to modern kernel standards. Just remember to pop open your Protocol settings after updating to make sure you are actually sitting in the fast lane.