223 step-by-step IT guides and fixes across Windows Server, Microsoft 365, Teams, Windows, Docker, and virtualization.
Install the DHCP role on Windows Server, authorize it in Active Directory, create a scope, set options, add reservations and exclusions, and configure DHCP failover.
Pillar Guide
Compare Proxmox KVM VMs and LXC containers: isolation, performance, overhead, when to pick each, why Windows needs a VM, and privileged vs unprivileged containers.
The green turtle in your VirtualBox status bar means the VM is running on Hyper-V's slow execution mode, not native VT-x. Here's how to get native speed back.
Pillar Guide
Understand Docker networking: bridge vs host vs none, default vs user-defined bridges, container DNS by name, publishing ports, and Compose networks.
Task Manager pinned at 100% disk usage? Diagnose the real culprit — SysMain, Windows Search, telemetry, drivers, malware — and apply fixes that work on SSDs and HDDs.
Assign phone numbers to Teams users: the Teams Phone license you need, getting or porting numbers, Set-CsPhoneNumberAssignment, number types, and emergency address.
Assign Microsoft 365 licenses the right way: admin center direct vs group-based licensing, usage location, PowerShell and Graph, license conflicts, and clean removal.
Find locked-out AD accounts fast with Search-ADAccount, trace the lockout source using event ID 4740 on the PDC Emulator, and fix the cause with the right tools.
Add an NFS share to Proxmox VE: configure the export, add it under Datacenter > Storage, pick content types for ISOs, backups, and disk images, and fix mount problems.