Microsoft known for Microsoft Teams has begun distributing an out-of-band upgrade for Windows Server 2019. The same KB5010791 fix resolves a few of the significant problems identified with Patch Tuesday upgrades in January last year. 

This upgrade, as per the release notes, resolves a problem that causes unplanned restarts on Windows Server domain controllers. Microsoft also fixed a fault that caused ReFS (Resilient File System) formatted hard drives to either not appear at all or to appear as raw, unformatted discs. This version also provides fixes for problematic VPN connections on Windows Server computers. The complete list of enhancements may be seen in the changelog below: 

• Addresses a known problem that might make IP Security (IPSEC) connections with a Vendor ID to fail. VPN connections utilizing Layer 2 Tunneling Protocol (L2TP) or IP security Internet Key Exchange (IPSEC IKE) may be impacted as well. 
• Addresses a known problem that may result in Windows Servers restarting abruptly after downloading the January 11, 2022 upgrade on domain controllers (DCs). 
• When you perform many attribute modifications, a problem arises that prohibits Active Directory (AD) attributes from being correctly written during a Lightweight Directory Access Protocol (LDAP) edit operation. 
• Addresses a problem that may prohibit removable media that is formatted using the Resilient File System (ReFS) from mounting or allow the removable media to mount in RAW file format. This problem arises after downloading the Windows update dated January 11, 2022. 

The out-of-band upgrade comes on the heels of the introduction of emergency updates for Windows Server 2022, 20H2, 20H1, 2016, and 2012 R2. All of the above vulnerabilities were fixed by these Windows Server upgrades, which were issued on January 17. Microsoft has released patches for Windows 11, Windows 10, Windows 8, and Windows 7 to address the L2TP VPN connection issues. 

Microsoft famous for Office 365 advises users to apply the latest patch on their Windows Server 2019 computers as soon as feasible. Keep in mind that the KB5010791 upgrade is accessible via Windows Update, as well as through standalone packages offered on the Microsoft Update Catalog.