What stops working after updates from Windows, Microsoft 365, Exchange, VMware, Veeam and other major vendors – with status, workaround and fix, continuously from the vendors’ official sources, complemented by reports from forums and the community and by targeted web research. Anything the vendor has not confirmed yet is labelled as a community report.
Always On VPN profiles with automatic protocol selection or fallback (IKEv2 and SSTP) failed after the September 2026 Windows 11 updates. According to secondary sources and research notes, the optional preview update KB5127936 (28 Oct 2026) fixes this. We could not read the vendor page ourselves, so the details are not yet confirmed by a vendor source here.
Users report that adding a shared printer from a Windows Server via Settings > Add device fails with error 87 on Windows 11 25H2 after update KB5127648. This is reported by users, not yet confirmed by the vendor. Only one independent source has been found so far.
Microsoft · Windows 11 25H2 with printers shared from Windows Server
USB Audio Class 1.0 devices reportedly fail with Code 10 or produce no sound on Windows 11 and Windows Server 2025. This is reported by users, not yet confirmed by the vendor. No permanent fix has been found; a third-party page claims the Windows Server 2022 update KB5126655 fixes it, which is unverified.
Microsoft · Windows Server 2025, Windows 11 26H2/25H2/24H2, Windows Server 2019
During Windows Autopilot pre-provisioning for Microsoft Entra hybrid join, the technician flow can fail when an assigned policy needs a domain controller to resolve a policy conflict. Microsoft describes this as a known limitation and expected behavior when the device has no line-of-sight to a domain controller. Microsoft documents ways to avoid it.
Microsoft confirms that Outlook public holiday calendars may lack holiday entries for the second half of 2026 and for 2027. This affects Outlook on the web, new Outlook for Windows, classic Outlook for Windows and other clients using Microsoft's holiday data. Microsoft is investigating reports from several regions; an alternative holiday source is suggested as a workaround.
In classic Outlook, Server Assisted Search against online mailboxes does not update when search results change. Microsoft confirms the issue and has escalated a hotfix to the Outlook team. There is no ETA yet. A registry workaround is available.
Microsoft confirms that in classic Outlook for Microsoft 365 the Help and support options might not open or might fail to reopen after the Help pane is closed. Restarting Outlook temporarily restores access. The Outlook Team is investigating; no fix is available yet.
During a Windows Autopilot for existing devices deployment, screens that are disabled in the Autopilot profile are still shown. Windows deletes AutopilotConfigurationFile.json when Sysprep.exe runs with /Generalize, which the Configuration Manager step Prepare Windows for Capture does. Microsoft documents a workaround.
Windows Autopilot device provisioning can fail on devices whose real-time clock is off by a significant amount of time, for example several minutes or more. Microsoft lists this in its Autopilot known issues and describes a workaround: sync the clock during OOBE.
In user-driven hybrid Microsoft Entra deployments, Windows Autopilot does not grant the user Administrator rights, even if the Autopilot profile specifies it. This happens when another user with Administrator rights already exists on the device. Microsoft documents this as a known issue and describes how to avoid it.
Blocking apps defined in an Enrollment Status Profile (ESP) that is targeted at users are ignored during the device ESP phase. The services cannot determine the correct ESP profile because the user identity is not yet known. Microsoft documents a workaround; no fix is announced yet.
Microsoft documents that TPM (Trusted Platform Module) attestation on Intel firmware TPM Tiger Lake devices requires a minimum update level of Windows 10, version 21H2. Older Windows versions are not supported, so attestation does not work there. The requirement is to install KB5007253 or later.
When customizations are applied to the company branding settings, the Windows Autopilot sign-in page may show HTML tags instead of rendering them. Microsoft lists this as a known issue and states it should be fixed in future versions of Windows. No fix is available yet.
In Windows Autopilot user-driven Microsoft Entra join, a user can be pre-assigned to a device. When Active Directory Federation Services (ADFS) is used, this username assignment is not enforced. Microsoft lists this in its known issues; no fix or workaround is documented yet.
Devices enrolled with Windows Autopilot self-deployment mode or pre-provisioning mode fail with error 0x80180014 when they are redeployed and run the Autopilot deployment again. Microsoft confirms the issue and documents two workarounds.
Microsoft confirms that Microsoft Edge versions below 146.0.3856.117 do not work with Microsoft 365 Copilot chat in the sidebar. The internal Edge container page that hosts the chat was changed with Edge Stable 146.0.3856.117 on April 10, 2026. Updating Edge to 146.0.3856.117 or later is the required step.
Some customers may experience a crash during an update when running MicrosoftEdgeUpdate.exe with msedgeupdate.dll version 1.3.261.11. Microsoft confirms the issue and states that EdgeUpdate with msedgeupdate.dll 1.3.263.3 contains a fix. The crash does not involve the Microsoft Edge browser or the Microsoft WebView2 Runtime.
In Microsoft Edge version 153, some users may experience a prolonged browser freeze when interacting with specific web applications while accessibility features are enabled. Microsoft has confirmed the issue and is working on a fix. Temporary workarounds are available.
Microsoft states that the built-in translation feature stops working on Microsoft Edge versions earlier than 136 after July 30, 2026. The date has passed, so the change is live. Updating Edge to the latest version resolves it.
Microsoft lists a known issue in which Automation add-ins for Excel do not load after the April 2021 security update is installed. Microsoft marks the issue with the status Workaround. The excerpt available does not describe the workaround steps.
We continuously read the vendors’ official sources, community reports and trade media and summarise them in our own words, with a link to the source:
Microsoft: Windows release health (Windows 10/11, Server 2016 to 2025), Windows message center, known issues of Microsoft 365 Apps (Outlook, Excel, Word, PowerPoint), Edge, Intune, Autopilot, Windows 365 and Entra Connect, Microsoft KB articles with timelines, Exchange and Windows IT Pro blogs, optionally Microsoft 365 service health and message center
other vendors: Veeam KB, Citrix (known issues), Ubuntu and Debian (regressions), Broadcom (VMware), Fortinet, Cisco, Mozilla, Let’s Encrypt
community (title, short excerpt and link only, without the names of the authors): Microsoft Q&A, Microsoft Tech Community (discussions), Veeam R&D Forums, Eleven Forum
targeted web research with AI (Claude), e.g. on the updates of the month – this also finds discussions on Reddit and in forums; such entries are labelled as community reports until the vendor confirms them
early warning from trade media (title and link only): Born’s Tech and Windows World, BleepingComputer, AskWoody, Windows Latest, Windows Central, gHacks, The Windows Club, Deskmodder, Dr. Windows, WindowsArea, Frankys Web, heise online
Summary and translation with AI (Claude by Anthropic) – without any data of visitors.
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