This Windows 11 ad blocker explains how its new feature could be a bit of a game changer

Expecting ads on Windows is something we have kind of become accustomed to at this point. It really started when users began noticing ads and promos on Insider previews for Windows 11 back in 2022, and even in 2026, it is a problem, with the company even pushing for full-screen adverts while you are trying to set up a PC.

Microsoft, though, seems to understand that users are not a fan of it and hence there is a promise this year, that Windows 11 will see fewer ads and recommendations, at least in some cases. That's a start for sure, so hopefully in Windows "12", there will be even fewer of those.

If you like to block such recommendations like those on the Windows 11 Start menu, AdGuard for Windows is a great third-party adblocking option to consider as it offers system-wide content filtering and blocking. The application recently received its latest version and it has a neat new feature which promises many good things, like fewer system crashes and conflicts, and more.

That new feature is the debut of a new SockFilter network driver, and it marks a notable shift in AdGuard’s approach to traffic filtering on Windows. The firm explains that SockFilter operates at the transport layer (TCP/UDP), focusing on socket operations rather than raw packet inspection. This design places it closer to how applications themselves use the internet, thus potentially reducing complexity which also in turn should improve stability. So overall, AdGuard claims that SockFilter:

• Plays nice with VPNs and firewalls — fewer conflicts
• Lowers risk of crashes or critical Windows errors (NETIO-related BSODs)
• Stays out of the system's low-level internals unless absolutely necessary

For those not aware, AdGuard has long relied on the Windows Filtering Platform (WFP) driver for network filtering purposes. However, WFP’s deep integration with the OS can lead to compatibility issues, especially when combined with VPNs, firewalls, or antivirus software. The legacy TDI (Transport Driver Interface) driver remains available but is outdated and known to cause filtering glitches in browsers such as Google Chrome. Hence, this is where AdGuard thinks its new lightweight SockFilter kernel-mode driver can tremendously help.

For now, the new network driver is experimental in nature and AdGuard notes a known issue with Discord. But if you wish to test it, on the new AdGuard for Windows version 7.22.4, go to Settings > Network > Traffic filtering, enable traffic filtering, and select SockFilter (Experimental) from the list of available options. If you notice anything unusual or unexpected, you can switch back to TDI or WFP.