02 Oct, 2026

Microsoft plans to deprecate Windows Deployment Services

Microsoft announced it will deprecate the Windows Deployment Services (WDS) server role starting with the next Windows Server release. WDS is a revised version of Remote Installation Services (RIS) that lets IT administrators remotely install Windows operating systems on fleets of dozens or hundreds of computers over a network. After deprecating WDS in the next […]

2 mins read

Microsoft fixes bug behind ‘Defender Antivirus is turned off’ alerts

Microsoft has resolved a known issue that causes incorrect alerts warning that Defender Antivirus was turned off after installing recent updates. In a Windows release health dashboard update on Thursday, Microsoft said the issue was fixed in the Microsoft Defender Antivirus update (version 4.18.26080.4) released on September 17. The company acknowledged the bug in late […]

2 mins read

Windows Server 2022 reaches end of mainstream support next month

Microsoft has reminded customers that Windows Server 2022 will reach the end of mainstream support next month and enter extended support until October 2031. Windows Server 2022 was unveiled in March 2021, and it became generally available in September 2021 as the Long-Term Servicing Channel (LTSC) release, with 10 years of support. “On October 13, […]

2 mins read

Microsoft releases emergency Windows updates to fix RDS failures

Microsoft has released emergency out-of-band Windows updates to fix Remote Desktop Services failures caused by this month’s security updates, along with Hyper-V and USB audio problems on some Windows versions. The September 2026 security updates caused Remote Desktop Services (RDS) to become unstable on affected systems, leading to RDP connection and sign-in failures and, in […]

3 mins read

Microsoft: September updates cause RDS failures on Windows Server

Microsoft has confirmed reports that the September 2026 security updates cause Remote Desktop Services (RDS) failures on Windows Server systems. According to a release health update on Friday, this known issue impacts Windows Server 2012 and later, as well as Windows 10 and Windows 11 devices. This confirmation follows widespread reports from Windows admins that […]

2 mins read

September Windows Server updates break Remote Desktop Services

Windows admins report that the September 2026 cumulative updates are causing Remote Desktop Services (RDS) failures on Windows Server 2019, 2022, and 2025 systems, preventing users from connecting and, in some cases, requiring a hard reset to restore functionality. The problems appear after installing this month’s Microsoft September 2026 Patch Tuesday cumulative updates, with many admins reporting […]

2 mins read

August updates trigger 0xc0000409 errors on Windows Server 2016

Microsoft says the August 2026 security update may trigger 0xc0000409 errors on Windows Server 2016 systems where the Compatibility Appraiser diagnostic service is enabled. On affected systems, users will see the CompatTelRunner.exe (Compatibility Appraiser Telemetry Runner) process crashing. Microsoft Compatibility Appraiser, which controls CompatTelRunner and is a Windows Compatibility Telemetry component, is a background system […]

2 mins read

Microsoft: Windows Server 2025 changes causing app crashes

Microsoft warned customers last week that they may experience application crashes on some Windows Server 2025 due to recent memory management changes. This known issue affects apps that use Address Windowing Extensions (AWE), a set of extensions that lets an application use more than 4GB of physical memory within a 32-bit virtual address space. “Applications running on […]

2 mins read

Microsoft asks users to ignore ‘Antivirus is turned off’ errors

Microsoft asked customers this week to ignore incorrect alerts that Defender Antivirus has been turned off after installing the latest Defender updates. Although this issue has been affecting users in the Release Preview Channel of the Windows Insider program since June, it appears Microsoft didn’t notice it until now. The erroneous alerts appear on affected systems in the Windows […]

1 min read

Microsoft: August updates break printing, PDF export in WPF apps

Microsoft has confirmed that .NET Framework updates released as part of the August 2026 Patch Tuesday are breaking printing and PDF export in some applications. In a Windows release health alert seen by GeekFeed, Microsoft says this known issue affects only apps that use the Windows Presentation Foundation (WPF) UI framework, an open-source graphical subsystem […]

1 min read