If you're still using Windows 10 and rely on its security features, now is the time to check for an important update. Microsoft has released a new security patch, KB5073724, which targets several vulnerabilities in the operating system. This isn't just another routine update—it's a critical one that could impact older hardware while enhancing overall security.
For those unfamiliar with Extended Security Updates (ESU), it's a program Microsoft introduced to provide continued security support for Windows 10 beyond its official end-of-life date. If you're part of this program, KB5073724 is already available and will be automatically installed on your system during the next update cycle.
The update primarily focuses on addressing security flaws discovered in recent months, including a notable fix for WinSqlite3.dll, a core component that some security software had previously flagged as vulnerable. Additionally, this patch introduces a phased approach to Secure Boot certificate updates, ensuring that only devices with verified success rates receive the new certificates. This method aims to prevent widespread disruptions while maintaining robust security.
However, there's a catch for users with older hardware. KB5073724 removes several modem drivers, specifically agrsm64.sys and smserl64.sys for 64-bit systems, as well as their 8-bit counterparts. If your system relies on these drivers, they will no longer function after the update. Microsoft has not reported any issues specific to private users, but it's worth noting that this update might affect Azure Virtual Desktop and Windows 365 environments.
So, what should you do? If you're already enrolled in ESU, the update will likely be installed automatically during your next scheduled update cycle. You can manually check for updates by navigating to Settings > Update & Security > Windows Update. For those who prefer more control, Microsoft's Update Catalog is also an option, though it requires a bit more technical know-how.
In summary, KB5073724 is a necessary update for Windows 10 users still relying on ESU. It brings critical security improvements while phasing out outdated components. While some older hardware may be affected, the benefits of enhanced security far outweigh the potential drawbacks. Staying updated ensures your system remains protected against evolving threats.
