Microsoft has recently acknowledged a perplexing issue with Windows Firewall following the June 2025 preview update of Windows 11 24H2. This glitch has surfaced in the known issues section of the update, identified as KB5060829 (OS Build 26100.4484). The company has indicated that users may encounter an error event related to Windows Firewall with Advanced Security, which has raised eyebrows among users and IT professionals alike.
According to Microsoft, the error manifests as ‘Config Read Failed,’ accompanied by the message ‘More data is available.’ This event is logged each time a user restarts their device, yet the company reassures users that it does not signify a malfunction within Windows Firewall. Instead, it can be safely disregarded. Despite this reassurance, the lack of detailed information regarding the root cause of the issue leaves many questions unanswered.
Windows Firewall is having issues with Microsoft code in latest Windows 11 build
While Windows Firewall is expected to operate without disruption, the presence of false positives in the Event Log can be a source of frustration, particularly for those engaged in system monitoring. Microsoft has clarified that this event is linked to a feature currently under development and not yet fully realized. However, the company has not provided a timeline for when a fix might be available.
In its communication, Microsoft stated, “We are working on releasing a resolution and will provide more information when it is available.” Compared to previous issues encountered with Windows 11 24H2, this particular glitch is relatively benign, as it does not lead to system crashes. However, it does raise concerns about the possibility of unfinished code being released in public builds.
Additionally, Microsoft has noted another issue within the same build, specifically affecting the display of Chinese, Japanese, and Korean characters under certain conditions. This problem is particularly evident at 96 DPI in Chromium-based browsers, including Microsoft Edge. The company is actively collaborating with Google to address this matter.