Hello Windows Insiders, today we’re releasing 21H1 Build 19043.867 (KB5000802) the Beta Channel for those Insiders who are on 21H1 (Click here for the 21H1 announcement)

This security update includes quality improvements. Key changes include:

• We fixed an elevation of privilege security vulnerability documented in CVE-2021-1640 related to print jobs submitted to “FILE:” ports. After installing Windows updates from March 9, 2021 and later, print jobs that are in a pending state before restarting the print spooler service or restarting the OS will remain in an error state. Manually delete the affected print jobs and resubmit them to the print queue when the print spooler service is online.
• Security updates to the Windows Shell, Windows Fundamentals, Windows Management, Windows Apps, Windows User Account Control (UAC), Windows Virtualization, Windows Kernel, the Microsoft Graphics Component, Internet Explorer, Microsoft Edge Legacy, and Windows Media.

For more information about the resolved security vulnerabilities, please refer to the new Security Update Guide website.

Please note it may take up to an hour after going live for the KB article to show up on the Windows 10 update history page.

Thanks,
The Windows Insider Program Team