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How to install Windows Admin Center vMode on Windows Server 2025

Windows Admin Center vMode (image Microsoft)
Windows Admin Center (WAC) vMode (Virtualization Mode) is a current in-preview management gateway for Hyper-V environments, deployable as a stateful appliance with an integrated PostgreSQL database. Unlike aMode (Administration Mode), vMode targets centralized virtualization management across multiple hosts and clusters, without requiring System Center Virtual Machine Manager (SCVMM). The only mandatory prerequisite is the Microsoft Visual C++ Redistributable. This article covers the system requirements, environment preparation, and installer walkthrough for vMode, and briefly explains how aMode installation differs.

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Enable Windows Group Policy Preferences (GPP) debug logging

Enable Preference Logging (image Microsoft)
Starting with the February 2026 preview updates for Windows 11 24H2 and 25H2, Microsoft has made Group Policy Preferences (GPP) debug logging configurable directly in Local Group Policy via gpedit.msc. Previously, these settings were primarily managed through domain-based Group Policy Objects (GPOs); enabling them via Local Group Policy typically required manually copying the GroupPolicyPreferences .admx/.adml templates into the local PolicyDefinitions store. You can now enable per-CSE (client-side extension) event logging and file-based tracing on individual client devices without a domain controller.

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4sysops turns 20

Computers haven't changed much in the last 50 years, since my first computer, the Commodore PET 3032
Twenty years ago, I authored my first 4sysops blog post. However, my fascination with IT started much earlier. I can't recall exactly how I came to this realization, but I initially believed that computers were superior learning tools to books and that studying how to use them would give me superpowers. Forgive me, I was just an immature teenager. Although I soon forgot this idea, I was already hooked after the initial lines of my first computer program.

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Windows 11 dépasse les 70 % de parts de marché : près des 3/4 des PC sous le dernier Windows

Les chiffres de Statcounter pour février 2026 sont tombés et ils confirment une tendance que l’on n’avait pas vue depuis longtemps : Windows 11 enchaîne deux mois de progression spectaculaire, alors que Windows 10 recule nettement. Malgré les nombreuses critiques dont il fait l’objet — bugs récurrents, fonctionnalités IA contestées, mises à jour d’urgence à … Lire la suite

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Enable Windows 365 Reserve on a Windows 365 Boot device

Windows 365 Boot device in Intune admin center (image Microsoft)
Windows 365 Reserve and Windows 365 Boot are two complementary Microsoft cloud services that, when combined, let employees resume work on a preconfigured Cloud PC from any Windows 11 device without additional setup. Windows 365 Reserve provides short-term Cloud PC access for users whose primary physical device is unavailable. Windows 365 Boot redirects the Windows 11 sign-in experience directly to a Cloud PC, though administrators can configure policies to allow users to access the physical device's local OS if needed.

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Enable batch file secure mode in Windows 11 with LockBatchFilesWhenInUse: Lock running batch scripts

Add LockBatchFilesWhenInUse value to Registry
Windows 11 Insider Preview builds introduce a new secure processing mode for batch files and CMD scripts. IT administrators can enable it via a registry value named LockBatchFilesWhenInUse, which prevents batch files from being altered while they execute. The feature also improves performance when Windows Defender Application Control (WDAC) code integrity policies are active. It is currently available in the Dev Channel build 26300.7939, and the Beta Channel build 26220.7934.

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