Security News > 2022 > January > Windows Server 2019 OOB update fixes reboots, Hyper-V, ReFS bugs
Microsoft has released an emergency out-of-band update for Windows Server 2019 that fixes numerous critical bugs introduced during the January 2022 Patch Tuesday.
Soon after Windows Server admins installed the January 2022 updates, they began reporting severe issues, including domain controllers entering into boot loops, Hyper-V no longer starting, L2TP VPN connections failing, and ReFS volumes becoming inaccessible.
Microsoft also released security updates for Windows 10, Windows 8, and Windows 7 operating systems to resolve the LT2P connection issues.
Addresses a known issue that might cause Windows Servers to restart unexpectedly after installing the January 11, 2022 update on domain controllers.
Microsoft states that the Windows Server 2019 KB5010791 update is available for Windows Update and the Microsoft Catalog.
Windows Server admins who installed yesterday's OOB updates report that they fixed the issues with the January updates.
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