Windows 11 25H2: Adding shared printer via "Add device" fails with error 87
Summary
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.
Symptoms
Adding a shared printer via Settings > Add device fails with error 87. Adding the printer manually works.
Affected
- Windows 11 25H2 with update KB5127648 installed
- Printers shared from Windows Server
Workaround
- Add the printer manually instead of using Settings > Add device.
- Reports mention that uninstalling the update fixes the problem; this is unverified and removes security fixes.
Fix
Not fixed yet. No vendor statement is available. Reports speculate about NTLMv1 hardening (NTLM is an older authentication protocol) as the cause, which is unconfirmed.
Recommendation
Do not uninstall the update as a first step. Use manual printer adding for affected clients and watch for a Microsoft statement. Test the update on a pilot group before wide rollout if you rely on shared printers.
Reports from the community and trade media
Reports from forums, Q&A sites, Reddit and trade media – linked only, without the names of the authors; the vendor’s statement is authoritative.
- Windows 11 Update KB5127648: Gerät hinzufügen bei Druckern kaputt News · borncity.com, 24 Oct 2026
Sources
- Windows 11 Update KB5127648: Gerät hinzufügen bei Druckern kaputt News · borncity.com
Compiled from community reports and web research and translated with AI (Claude) – not yet confirmed by the vendor. The vendor’s statements are authoritative. Updated 1 Nov 2026, 18:36.
Where the information comes from
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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