Microsoft has released an out-of-band update that fixes multiple issues after installing the January Windows updates that impacted VPN connectivity, Windows Server Domain Controllers, Virtual machines and ReFS-formatted removable media.
The updates were made available earlier this week, about a week after the January Patch Tuesday updates caused more issues for system administrators. However, there were several critical vulnerabilities fixed by this month’s security patches, so IT should apply the new fixes rather than rolling back the updates.
According to Microsoft, there are four issues that this out-of-band update addresses:
- VPN connectivity. According to the company, the January updates are causing some IP Security connections which contain a Vendor ID to fail. VPN connections using Layer 2 Tunneling Protocol (L2TP) or IP security Internet Key Exchange (IPSEC IKE) might also be affected. This impacts clients Windows 11, version 21H2; Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10, version 1909; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10, version 1607; Windows 10 Enterprise 2015 LTSB; Server 2022; Windows Server, version 20H2; Windows Server 2019; Windows Server 2016.
- Windows Servers domain controllers. Microsoft says the January updates are causing some versions of Windows Servers to restart unexpectedly. Windows Server versions 2016 and later are more likely to be affected when domain controllers are using Shadow Principals in Enhanced Security Admin or environment with Privileged Identity Management, the company says. This impacts Windows Server 2022; Windows Server, version 20H2; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012.
- Virtual machines in Hyper-V failing to start. According to Microsoft, the January update also caused devices using UEFI, virtual machines in Hyper-V to fail to start. That impacted Windows 8.1 and Windows Server 2021 R2 and Windows Server 2012.
- ReFS-formatted removable media may fail to mount or mount as RAW. Microsoft says the January update caused an issue where Removable Volumes formatted with Resilient File System (ReFS) fail to mount or mount as RAW. This may be because the ReFS file system is not supported on removable medial, including USB external drives. One of the January updates impacted the ability of the unsupported volumes to be mounted, the company says. This impacts Windows 11 (original release); Windows 10, version 21H2; Windows 10, version 21H1; Windows 10, version 20H2; Windows 10, version 1909; Windows 10, version 1809; Windows 10 Enterprise LTSC 2019; Windows 10 Enterprise LTSC 2016; Windows 10, version 1607; Windows 10 Enterprise 2015 LTSB; Windows Server 2022; Windows Server, version 20H2; Windows Server 2019; Windows Server 2016; Windows Server 2012 R2; Windows Server 2012.
Here’s more from Microsoft:
Updates for the following Windows versions are available on Windows Update as an optional update. For instructions, see the KB for your OS listed below:
- Windows 11, version 21H1 (original release): KB5010795
- Windows Server 2022: KB5010796
- Windows 10, version 21H2: KB5010793
- Windows 10, version 21H1: KB5010793
- Windows 10, version 20H2, Windows Server, version 20H2: KB5010793
- Windows 10, version 20H1, Windows Server, version 20H1: KB5010793
- Windows 10, version 1909, Windows Server, version 1909: KB5010792
- Windows 10, version 1809, Windows Server, version 1809, Windows Server 2019: KB5010791
- Windows 10, version 1607, Windows Server 2016: KB5010790
- Windows 10, version 1507: KB5010789
- Windows 7 SP1: KB5010798
- Windows Server 2008 SP2: KB5010799
Updates for the following Windows versions are available only on Microsoft Update Catalog. For instructions, see the KB for your OS listed below:
For more information on applying the fixes, visit Microsoft’s Windows message center.
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