Microsoft has made significant strides in enhancing the security of its Windows 10 operating system with the recent release of update KB5099539. This update addresses a range of vulnerabilities that have come to light, ensuring users can navigate their digital environments with greater confidence.
Details of the Update
KB5099539 is part of a broader initiative that includes updates for Windows 10 22H2, Windows 10 Enterprise LTSC 2021, and Windows 10 IoT Enterprise LTSC 2021. The update will be automatically installed on eligible systems, sparing users the need for manual intervention. Once installed, systems will reflect the build number 19045.7548, as reported by BleepingComputer.
While this update is primarily focused on security enhancements, it also addresses some notable bugs. For instance, it resolves an issue in File Explorer that disrupted OneDrive shortcuts when the application was run in administrator mode. Additionally, users can expect the removal of an erroneous error message that appeared during file deletions, along with fixes for certain keyboard shortcut malfunctions.
Important: In line with the security enhancements, Windows 10 PCs will also receive updated Secure Boot certificates. Microsoft has been proactive in rolling out these certificates, which are crucial for maintaining system integrity. The company has stated:
Secure Boot certificates used by most Windows devices were set to expire starting in June 2026. Microsoft has been updating these certificates on PCs and non-managed business devices for the past months. Devices that haven’t received the newer certificates will continue to start, and standard Windows updates will continue to install. We will continue to install the newer certificates via Windows updates in the coming months.
To benefit from the KB5099539 update, users must be enrolled in the Extended Security Updates (ESU) program, which guarantees continued support until October 12, 2027. This program is designed for organizations that require extended security measures beyond the standard support lifecycle.
Further reading: If you are part of the Windows 10 ESU program, you may want to check your inbox for important communications regarding this update.
