KB5131090: Overview with user sentiment and feedback
Last Updated November 11, 2026
Probability of successful installation and continued operation of the machine
Overview
Cumulative update for Windows Server 2022 (OS Build 20348.5870), released November 10, 2026. It includes the latest security fixes and non-security fixes from the October 2026 preview and out-of-band releases, and installs the servicing stack update KB5131089 (20348.5859). It applies only to Windows Server 2022, which has reached end of mainstream support.
General Purpose
- Updates Cuba's DST rules: it stays on UTC-04:00 and skips the November 2026 and March 2027 transitions.
- Fixes on-premises Exchange issues with OWA sign-in, Outbox delivery, and mailbox replication.
- Fixes printer installation failing with error 87 when adding Active Directory-published printers.
- Fixes RD Web Access failing to load when XSLT is disabled by browser policy, since pages now render on the server.
- Enables NTLM message signing by default for non-anonymous clients to reduce relay risk.
- Makes Import-WdsInstallImage require administrator rights, and tightens PowerShell signed-script UTF-8 validation, which may reject previously accepted scripts.
General Sentiment
No community discussion (Reddit, Windows Latest, or forums) was included in the provided data, so user reception could not be assessed. The only signal available is Microsoft's own documentation, which flags a known Exchange-related issue and a change that may break unsigned or non-UTF-8 PowerShell scripts.
Known Issues
Disclaimer: We take measures to ensure that AI-generated content is of the highest possible quality, but we cannot guarantee its accuracy and recommend that users do their own independent research. Generated on 2026-11-11 07:11 AM
