11 articles · Curated and written by practitioners
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Microsoft Tells Users to Ignore False 'Antivirus Is Turned Off' Alerts
Microsoft has confirmed a known issue in which recent Microsoft Defender Antivirus updates trigger false "Microsoft Defender Antivirus is turned off" alerts in the Windows Security app, even though the antivirus is running normally. The bug affects all supported Windows client and server versions, including Windows 11 26H1 and Windows Server 2025, and a fix is still pending.
Enable DNS-over-HTTPS (DoH) on Windows Server 2025 DNS Server
Learn how to enable DNS-over-HTTPS (DoH) on the Windows Server 2025 DNS Server role, covering certificates, netsh binding, the Set-DnsServerEncryptionProtocol cmdlet, and client testing.
How to Optimize Windows Server 2025 Performance for Maximum Efficiency
A step-by-step guide to tuning Windows Server 2025 for maximum performance: identify bottlenecks, set power plans, optimize memory, storage, drivers, networking, and monitoring.
How to Perform an In-Place Upgrade to Windows Server 2025
Upgrade Windows Server 2012 R2, 2016, 2019, or 2022 to Windows Server 2025 in place while keeping roles, apps, and data - with verified prerequisites, setup commands, and post-upgrade checks.
Microsoft Ships KB5094126 June 2026 Security Update for Windows 11 24H2 and 25H2
Microsoft released KB5094126 on June 9, 2026, a security update for Windows 11 versions 24H2 and 25H2 and Windows Server 2025. According to the update documentation, it fixes six vulnerabilities (CVE-2026-26001 through CVE-2026-26006) spanning the Windows Kernel, Edge WebView2, Graphics component, authentication, and Windows Shell, and raises builds to 26100.8655 (24H2) and 26200.8655 (25H2).
Microsoft Ships KB5094125 to Patch Five Windows Server 2025 Flaws
Microsoft's June 2026 security update KB5094125 patches five vulnerabilities in Windows Server 2025, including a critical unauthenticated Remote Desktop Services RCE (CVE-2026-0235) and a Hyper-V guest-to-host escape (CVE-2026-0237). The update raises the OS build to 26100.32995 and applies to all editions across full GUI and Server Core installations.
How to Deploy and Configure Remote Desktop Services (RDS) on Windows Server 2025
Deploy a session-based Remote Desktop Services (RDS) infrastructure on Windows Server 2025 - Connection Broker, Web Access, Session Host, Licensing, and optional Gateway - then create collections, publish RemoteApps, and choose a modern profile strategy (FSLogix).
Microsoft Ships KB5087539 Security Update for Windows Server 2025
Microsoft released KB5087539 on May 12, 2026, a security update for Windows Server 2025 that patches remote code execution, privilege escalation and information disclosure flaws across the kernel, Active Directory Domain Services and Remote Desktop Services. The update raises the OS build to 26100.32860 and applies to Standard and Datacenter editions in both Desktop Experience and Server Core.
How to Replace the SSL Certificate on ADFS (Windows Server 2025)
Replace an expiring or renewed SSL certificate on an AD FS farm running Windows Server 2025, including WAP servers, using Set-AdfsSslCertificate and PowerShell verification steps.
Microsoft Ships KB5082417 .NET Framework Update Fixing CLR Privilege Escalation Flaw
Microsoft released KB5082417, a cumulative security and reliability update for .NET Framework 3.5 and 4.8.1 on Windows 11 25H2 and Windows Server 2025. It patches a critical CLR elevation-of-privilege vulnerability (CVE-2026-0847) and resolves ASP.NET memory corruption, WCF reliability, Entity Framework performance and XML serialization issues.
Microsoft April 2026 Patch Tuesday: KB5082063 Patches TCP/IP RCE and Hyper-V Escape in Windows 11 24H2 and Server 2025
Microsoft released KB5082063 on April 14, 2026, a security update for Windows 11 24H2 and Windows Server 2025 patching 6 CVEs including kernel EoP, TCP/IP RCE, Hyper-V escape, and auth token manipulation.