Windows→
2026-10-28
Remote Desktop connections might fail for non-admin users with error 0xC000000D
This issue affects non-admin users connecting through Remote Desktop with Administrator protection enabled.
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THE ENDPOINT NEWSROOM
Windows
in focus.
Windows client updates, release health, deployment guidance and security fixes.
IN FOCUS / Windows
05.11.2026
Microsoft Paint RCE: verify the Store app patch, not just Windows Update
CVE-2026-83844 is a Microsoft Paint remote code execution vulnerability with CVSS 8.1. Microsoft currently lists Store app build 11.2609.401.0 as the fix.
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Windows→
20.10.2026
One restart a month? Microsoft clarifies the Windows Update scope
Microsoft clarified on 19 October that monthly restart consolidation currently applies only to devices not managed by IT. Rollout remains gradual.
What's NewRead update →
Windows→
19.10.2026
Quick Machine Recovery reaches Windows Server 2025
Microsoft announced Quick Machine Recovery support for Windows Server 2025 with the October 2026 security update. Cloud remediation is disabled by default.
What's NewRead update →
Windows→
2026-10-16
Users might be unable to sign in to OWA or send emails on Exchange Server
October Windows Server updates can interrupt on-premises Exchange OWA, mail flow and mailbox replication.
Known issuesRead update →
Windows→
2026-10-15
Coming to Windows 11: An updated Photos experience
We're introducing an updated Photos experience on Windows 11 that makes it easier to browse, organize, and find photos and videos across a user's PC and OneDrive.
Product newsRead update →
Windows→
2026-10-14
KB5127648 may break 802.1X PEAP authentication on Windows 11
Microsoft now documents that KB5127648 changes NTLMv1-derived SSO defaults and can affect MS-CHAPv2 Wi-Fi, Ethernet and VPN authentication.
Known issuesRead update →
Windows→
2026-10-13
Applications which require AC-3 audio decoding might close unexpectedly
This issue is more likely to occur in legacy applications, and unlikely for many modern applications.
Product newsRead update →
Windows→
2026-10-13
USB audio devices might fail to start or produce no sound
Some USB Audio Class 1.0 devices display Code 10 or fail in multichannel audio modes after installing the Sept. 8 update
Product newsRead update →
Windows→
2026-10-13 · KB5127648
Windows 11 24H2 · KB5127648 · Build 26100.9711
Fixes AVD/FSLogix black screens, AC-3 playback and RAW printing. Microsoft withdrew the Always On VPN fix claim on 20 October; a VPN fix is still pending.
PatchstandRead update →
Windows→
2026-10-13 · KB5127648
Windows 11 25H2 · KB5127648 · Build 26200.9711
Fixes AVD/FSLogix black screens, AC-3 playback and RAW printing. Microsoft withdrew the Always On VPN fix claim on 20 October; a VPN fix is still pending.
PatchstandRead update →
Windows→
2026-10-13 · KB5127648
Windows 11 26H2 · KB5127648 · Build 26300.9711
Fixes AVD/FSLogix black screens, AC-3 playback and RAW printing. Microsoft withdrew the Always On VPN fix claim on 20 October; a VPN fix is still pending.
PatchstandRead update →
Windows→
2026-10-13 · KB5127648
KB5127648 can prevent enabling Smart App Control on Windows 11
Microsoft confirms that KB5127648 can leave the Smart App Control switch greyed out on Windows 11 24H2, 25H2 and 26H2 when the feature was previously off. Devices with Smart App Control already enabled remain protected.
Known issuesRead update →
Windows→
2026-10-13 · KB5126646
Windows Server 2025 · KB5126646 · Build 26100.33650
Adds opt-in Quick machine recovery and TLS 1.3 ML-KEM, improves Netlogon and Hyper-V TDX, and hardens AD FS DKM ACLs. WSUS sync error details remain unavailable.
PatchstandRead update →
Windows→
2026-10-13 · KB5126655
Windows Server 2022 · KB5126655 · Build 20348.5761
Adds enhanced NTLM auditing, fixes offline tiered Storage Spaces Direct and USB Audio Class 1.0, and automatically hardens AD FS DKM ACLs. WSUS error-detail suppression remains.
PatchstandRead update →
Windows→
2026-10-13 · KB5126651
Windows Server 2019 · KB5126651 · Build 17763.9376
Adds enhanced NTLM auditing, fixes BitLocker To Go compatibility with older systems, and automatically remediates AD FS DKM ACLs. Some USB audio symptoms remain unresolved.
PatchstandRead update →
Windows→
2026-10-13 · KB5126868
Windows Server 2016 · KB5126868 · Build 14393.9612
Introduces ReFS removable-media auditing and default AD FS DKM ACL hardening, plus Secure Boot and time-zone updates. USB Audio Class 1.0 remains partially unresolved.
PatchstandRead update →
Windows→
2026-10-13 · KB5126653
Windows 11 23H2 · KB5126653 · Build 22631.7652
October security update fixes File History backup and restore failures and tiered Storage Spaces Direct disks remaining offline. Microsoft corrected the OS build to 22631.7652 on 16 October.
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Windows→
2026-10-13
October 2026 Windows client Azure images: servicing and media checklist
Microsoft refreshed Azure client images on 13 October. 24H2 and 25H2 use KB5127648; the image table does not list a 26H2 image.
Product newsRead update →
Windows→
2026-10-13
October 2026 Windows Server Azure images and container baselines
Microsoft refreshed Server images and containers on 13 October. Marketplace image builds must not be confused with installed OS cumulative-update builds.
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Windows→
2026-10-08
Prepare for Windows Update certificate rotation in 2027
Windows Update trust certificates expire on May 17 and June 19, 2027; older or insufficiently patched Windows devices need an update or operating-system upgrade before the applicable deadline.
Product newsRead update →
Windows→
2026-10-08
Domain-joined devices might lose their secure trust relationship with the domain
Credential Guard-protected machine accounts might lose their secure channel to an on-premises Active Directory domain after Windows 11 version 26H2 begins honoring Machine Identity Isolation enforcement settings.
Product newsRead update →
Windows→
07.10.2026
Windows hybrid intelligence: local AI, cloud routing and agent controls
Microsoft outlined hybrid intelligence for Windows 11: local models and context, cloud routing when useful, and security boundaries for AI agents. Copilot features for Copilot+ PCs are planned to roll out over the coming months.
What's NewRead update →
Windows→
2026-10-06
Remote PC connections in Windows App on Windows is now generally available
Today, we’re excited to share that remote PC connections in Windows App on Windows is now generally available!
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Windows→
2026-10-01
What’s new in Windows 365: September 2026 recap
Windows 365 has turned five and we continue to focus on helping you get more from your Cloud PCs.
Product newsRead update →
Windows→
2026-09-30
Incorrect notifications that "Microsoft Defender Antivirus is turned off"
Microsoft Defender Antivirus remains active and functioning correctly despite notifications following the latest update. Microsoft status: Resolved.
Product newsRead update →
Windows→
2026-09-29
An IT pro’s guide to Windows 11, version 26H2
Windows 11, version 26H2 is now generally available, delivering the next annual feature update for Windows 11.
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Windows→
29.09.2026
Windows 11 26H2: enablement package or full upgrade?
Windows 11 26H2 is available. Eligible 24H2 and 25H2 devices can use a small enablement package with one restart instead of a traditional full upgrade. Here is what endpoint teams should validate before deployment.
What's NewRead update →
Windows→
2026-09-24
Devices might experience a black screen or desktop loading issues after sign-in
Microsoft confirms black-screen and desktop-loading failures after sign-in, primarily on Azure Virtual Desktop hosts using FSLogix. Microsoft status: Mitigated.
Product newsRead update →
Windows→
2026-09-23
Giving you more control over camera, microphone, and location
Windows Insiders in the Experimental channel can now decide which desktop apps access their camera, microphone, and location.
Product newsRead update →
Windows→
2026-09-17
General Availability: User-initiated provisioning for Windows 365 Reserve
Windows 365 Reserve helps organizations stay productive by providing employees with short-term access to a Cloud PC when their primary work device becomes unavailable.
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Windows→
2026-09-17
Remote Desktop Services might stop responding after Sept. 2026 security update
Some Windows devices with Remote Desktop enabled might experience Remote Desktop Services (RDS) instability.
Product newsRead update →
Windows→
2026-09-14
Host folder shares might be unavailable in Hyper-V-based Linux VMs
Microsoft resolved unavailable Plan9 host-folder shares in HCS-managed Linux VMs with KB5129194 and later updates.
Product newsRead update →
Windows→
2026-09-11
Remote Desktop Services might stop responding after Sept. 2026 security update
Microsoft resolved September update RDS instability with the September 14, 2026 out-of-band update and later cumulative updates.
Known issuesRead update →
Windows→
2026-09-11
Host folder shares might be unavailable in Hyper-V-based Linux VMs
Microsoft resolved unavailable Plan9 host-folder shares in HCS-managed Linux VMs with KB5129194 and later updates.
Known issuesRead update →
Windows→
2026-09-08
Microsoft Teams and Outlook might fail to launch on ARM-based devices
Microsoft resolved the ARM-based Teams and new Outlook launch failure with the 8 September 2026 security updates KB5124008 and KB5124012.
Product newsRead update →
Windows→
2026-09-08
Desktop background settings are lost or reset on some devices
Microsoft resolved the Windows 11 desktop-background reset issue with KB5124008 on 8 September 2026.
Product newsRead update →
Windows→
2026-09-08
Mouse customization is reset on non-English Windows devices
Microsoft resolved the mouse-customization reset on non-English Windows 11 devices with KB5124008 on 8 September 2026.
Product newsRead update →
Windows→
2026-09-08 · KB5124008
Windows 11 25H2 · KB5124008 · Build 26200.9445
KB5124008 updates Windows 11 25H2 to OS build 26200.9445 in Microsoft's 8 September 2026 security release.
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Windows→
2026-09-08 · KB5124008
Windows 11 24H2 · KB5124008 · Build 26100.9445
KB5124008 updates Windows 11 24H2 to OS build 26100.9445 in Microsoft's 8 September 2026 security release.
PatchstandRead update →
Windows→
2026-09-08 · KB5122880
Windows 11 23H2 · KB5122880 · Build 22631.7582
KB5122880 updates Windows 11 23H2 to OS build 22631.7582 in Microsoft's 8 September 2026 security release.
PatchstandRead update →
Windows→
2026-09-08 · KB5122871
Windows Server 2025 · KB5122871 · Build 26100.33438
KB5122871 updates Windows Server 2025 to OS build 26100.33438 in Microsoft's 8 September 2026 security release.
PatchstandRead update →
Windows→
2026-09-08 · KB5122882
Windows Server 2022 · KB5122882 · Build 20348.5622
KB5122882 updates Windows Server 2022 to OS build 20348.5622 in Microsoft's 8 September 2026 security release.
PatchstandRead update →
Windows→
2026-09-08 · KB5122876
Windows Server 2019 · KB5122876 · Build 17763.9245
KB5122876 updates Windows Server 2019 to OS build 17763.9245 in Microsoft's 8 September 2026 security release.
PatchstandRead update →
Windows→
2026-09-08 · KB5123099
Windows Server 2016 · KB5123099 · Build 14393.9512
KB5123099 updates Windows Server 2016 to OS build 14393.9512 in Microsoft's 8 September 2026 security release.
PatchstandRead update →
Windows→
2026-08-27
August 27, 2026—KB5120998 (OS Builds 26200.9278 and 26100.9278) Preview
Microsoft released the optional Windows 11 25H2 and 24H2 preview update KB5120998 with new management, File Explorer, Windows Share and interface improvements.
Preview updateRead update →
Windows→
2026-08-26
Some games become unresponsive when certain drivers are present
This issue is related to peripherals with RGB features Microsoft status: Resolved.
Product newsRead update →
Windows→
2026-08-20
KB5121003: RGB lighting drivers can make games unresponsive
Microsoft added a known issue for Windows 11 24H2 and 25H2 systems that use certain RGB-lighting components or low-level drivers such as inpoutx64.
Known issuesRead update →
Windows→
2026-08-19
Task Manager adds visibility into AI workloads
Task Manager can show per-process NPU and GPU neural-engine activity on supported newer Windows 11 devices.
Product newsRead update →
Windows→
2026-08-18
Delivery Optimization Troubleshooter creates support-ready log bundles
Microsoft published a PowerShell Gallery troubleshooter for Delivery Optimization and Microsoft Connected Cache diagnostics.
Product newsRead update →
Windows→
2026-08-11
GIF functionality in the Windows Emoji Panel might become unavailable
This issue occurs because the previous GIF provider (Tenor) retired its service on June 30, 2026.
Product newsRead update →
Windows→
11.08.2026
Windows 11 24H2 and 25H2: August cumulative experience changes
KB5121003 is the August cumulative security update for Windows 11 24H2 and 25H2. It carries the prior preview improvements forward and sets the new targets to build 26100.9168 and 26200.9168.
What's NewRead update →
Windows→
11.08.2026
Windows Server August servicing: DFS, PQC and backup reliability
The August 11 Server releases set a new security baseline for Windows Server 2025, 2022, 2019 and 2016.
What's NewRead update →
Windows→
11.08.2026 · KB5120240
Windows 11 23H2: Security Update im Detail
KB5120240 aktualisiert Windows 11 23H2 auf Build 22631.7517.
PatchstandRead update →
Windows→
11.08.2026 · KB5121003
Windows 11 24H2: Security Update im Detail
KB5121003 aktualisiert Windows 11 24H2 auf Build 26100.9168.
PatchstandRead update →
Windows→
11.08.2026 · KB5121003
Windows 11 25H2: Security Update im Detail
KB5121003 aktualisiert Windows 11 25H2 auf Build 26200.9168.
PatchstandRead update →
Windows→
11.08.2026 · KB5120249
Windows 10 ESU and LTSC 2021: Security Update im Detail
KB5120249 aktualisiert Windows 10 ESU and LTSC 2021 auf Build 19045.7663 / 19044.7663.
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Windows→
11.08.2026 · KB5120233
Windows Server 2025: Security Update im Detail
KB5120233 aktualisiert Windows Server 2025 auf Build 26100.33296.
PatchstandRead update →
Windows→
11.08.2026 · KB5120242
Windows Server 2022: Security Update im Detail
KB5120242 aktualisiert Windows Server 2022 auf Build 20348.5499.
PatchstandRead update →
Windows→
11.08.2026 · KB5120238
Windows Server 2019: Security Update im Detail
KB5120238 aktualisiert Windows Server 2019 auf Build 17763.9121.
PatchstandRead update →
Windows→
11.08.2026 · KB5120418
Windows Server 2016: Security Update im Detail
KB5120418 aktualisiert Windows Server 2016 auf Build 14393.9418.
PatchstandRead update →
Windows→
2026-08-03
Get ready for Windows 11, version 26H2
The next annual update for Windows 11 is coming soon and is already available to Windows Insiders!
Product newsRead update →
Windows→
03.08.2026
Windows settings backup becomes the default resilience baseline
Eligible Windows 11 version 26H2 devices will back up user settings and the Microsoft Store app list by default, making replacement and recovery scenarios more consistent.
Product newsRead update →
Windows→
03.08.2026
RDP Multipath adds resilient TCP paths for Windows 365 and AVD
Windows 365 and Azure Virtual Desktop now support RDP Multipath with redundant TCP connections to reduce disconnects when a network path degrades or changes.
Product newsRead update →
Windows→
03.08.2026
Arc-enabled Windows Server 2025 hotpatching is available at no extra cost
Azure Arc-enabled hotpatch updates for Windows Server 2025 can apply most security updates without a restart and are now available without an additional hotpatch charge.
Product newsRead update →
Windows→
03.08.2026
July Windows 11 update adds managed Start and accessibility changes
The July update for Windows 11 versions 25H2 and 24H2 begins a gradual rollout of the redesigned Start menu, accessibility improvements, quieter Widgets, better File Explorer size units and expanded Windows Hello ESS support.
Product newsRead update →
Windows→
03.08.2026
Windows 11 24H2 Home and Pro reach end of updates in October
Windows 11 version 24H2 Home and Pro reach end of updates on 13 October 2026; Enterprise and Education editions remain supported until 12 October 2027.
GeneralRead update →
Windows→
03.08.2026
Windows 10 Enterprise LTSB 2016 reaches end of updates in October
Windows 10 Enterprise LTSB 2016 reaches end of updates on 13 October 2026. Microsoft recommends Windows 11 Enterprise LTSC 2024, with ESU available when migration needs more time.
GeneralRead update →
Windows→
2026-07-22
Strengthening Key Management Service - (KMS) with Hardware-Based Trust
For years, organizations have relied on Microsoft’s Key Management Service (KMS) to activate Windows devices at scale.
Product newsRead update →
Windows→
2026-07-21
Now available: Admin control for SSO prompts in Windows
IT administrators can now automatically accept SSO permissions on managed Windows devices using a supported registry setting.
Product newsRead update →
Windows→
2026-07-21
RDP Multipath with redundant TCP is now generally available for Windows 365 and Azure Virtual Desktop
Reliable connectivity is essential for delivering a productive Cloud PC and virtual desktop experience.
Product newsRead update →
Windows→
18.07.2026 · KB5121767
Windows 11 24H2: OOB-Fix für Intel-IPF-Inkompatibilität
KB5121767 aktualisiert Windows 11 24H2 auf Build 26100.8894 und behebt die Intel-IPF-Inkompatibilität auf einer begrenzten Zahl betroffener Geräte.
PatchstandRead update →
Windows→
18.07.2026 · KB5121767
Windows 11 25H2: OOB-Fix für Intel-IPF-Inkompatibilität
KB5121767 aktualisiert Windows 11 25H2 auf Build 26200.8894 und behebt die Intel-IPF-Inkompatibilität auf einer begrenzten Zahl betroffener Geräte.
PatchstandRead update →
Windows→
16.07.2026
Windows SSO Prompt administrativ bestätigen
AutoAcceptSsoPermission steht nach KB5101650 für verwaltete Windows 11 24H2- und 25H2-Geräte bereit.
GeneralRead update →
Windows→
16.07.2026
Windows Server 2022: Mainstream Support endet in 90 Tagen
Microsoft bestätigt das Ende des Mainstream Supports für Windows Server 2022 am 13.10.2026. Extended Support mit monatlichen Security Updates läuft bis 14.10.2031 weiter.
GeneralRead update →
Windows→
14.07.2026
Secure Boot CA 2023 Rollout wird ausgeweitet
Die Juli Updates erweitern die gezielte Auslieferung neuer Secure-Boot-Zertifikate an geeignete Geräte.
GeneralRead update →
Windows→
14.07.2026
TDI Transport Registrierung wird erzwungen
Juli Security Updates blockieren Socket-Nutzung über nicht registrierte Drittanbieter-TDI-Transporte.
GeneralRead update →
Windows→
14.07.2026
RDP Trusted Publishers erhalten SHA-2 Thumbprints
Windows unterstützt SHA-2-Zertifikatthumbprints für vertrauenswürdige RDP Publisher; SHA-1 bleibt nur vorübergehend kompatibel.
GeneralRead update →
Windows→
14.07.2026
Windows Server 2025 erhält Hybrid-PQC für TLS 1.3
KB5099536 ergänzt Hybrid Post-Quantum Cryptography Key Exchange und Composite Cryptographic Formats.
GeneralRead update →
Windows→
14.07.2026
AD FS erkennt unsichere DKM ACLs
Windows Server 2025 erkennt unsichere Distributed-Key-Manager-Container-ACLs und bietet eine Opt-in-Remediation.
GeneralRead update →
Windows→
14.07.2026
Server 2025 Container starten schneller
KB5099536 verbessert den Start von Hyper-V-isolierten Windows Server Containern.
GeneralRead update →
Windows→
14.07.2026
WSUS zeigt weiterhin keine Sync-Fehlerdetails
Nach KB5070881 oder neuer entfernt WSUS vorübergehend detaillierte Synchronisationsfehler aus der UI.
GeneralRead update →
Windows→
14.07.2026
boot.stl muss in aktualisierten Images enthalten sein
Bei Dynamic Updates für bestehende Installationsmedien muss die passende boot.stl enthalten sein, sonst kann der Start mit 0xc0430001 fehlschlagen.
GeneralRead update →
Windows→
14.07.2026 · KB5099414
Windows 11 23H2: Security Update im Detail
KB5099414 aktualisiert Windows 11 23H2 auf Build 22631.7376.
PatchstandRead update →
Windows→
14.07.2026 · KB5101650
Windows 11 24H2: Security Update im Detail
KB5101650 aktualisiert Windows 11 24H2 auf Build 26100.8875.
PatchstandRead update →
Windows→
14.07.2026 · KB5101650
Windows 11 25H2: Security Update im Detail
KB5101650 aktualisiert Windows 11 25H2 auf Build 26200.8875.
PatchstandRead update →
Windows→
14.07.2026 · KB5099536
Windows Server 2025: Security Update im Detail
KB5099536 aktualisiert Windows Server 2025 auf Build 26100.33158.
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Windows→
14.07.2026 · KB5099540
Windows Server 2022: Security Update im Detail
KB5099540 aktualisiert Windows Server 2022 auf Build 20348.5386.
PatchstandRead update →
Windows→
14.07.2026 · KB5099538
Windows Server 2019: Security Update im Detail
KB5099538 aktualisiert Windows Server 2019 auf Build 17763.9020.
PatchstandRead update →
Windows→
14.07.2026 · KB5099535
Windows Server 2016: Security Update im Detail
KB5099535 aktualisiert Windows Server 2016 auf Build 14393.9339.
PatchstandRead update →
Windows→
2026-07-08
Windows 365 for Agents: A secured execution environment for AI agents
AI agents are rapidly evolving from answering questions to performing tasks across enterprise systems.
Product newsRead update →
Windows→
2026-06-23
Best practices for deploying Secure Boot certificate updates
Deploying Secure Boot certificate updates across the Windows ecosystem has required coordination across operating systems, device manufacturers, and firmware vendors.
Product newsRead update →
Windows→
2026-06-23
Point-in-time restore for Windows 11 is now generally available
When a Windows PC experiences an unexpected issue, every minute of downtime matters.
Product newsRead update →