# 1 — Sysinternals Suite
**What it is:** A single collection of small but powerful utilities for deep Windows inspection and troubleshooting (Process Explorer, Autoruns, Process Monitor, BgInfo, PSExec, etc.).
**Why use it:** Lets you see what processes are running, diagnose startup items, trace filesystem/registry/CPU activity, run processes remotely — essential for debugging malware, performance issues, or mysterious behavior.
**When to use:** Investigating unexplained CPU/Disk/network spikes, finding persistence mechanisms, analyzing crashes, checking startup programs.
**Key features:** Process Explorer (replace Task Manager), Autoruns (see everything that runs at boot), ProcMon (real‑time trace of registry/filesystem), PsTools (remote execution).
**Quick tip:** Start with Process Explorer to identify offending processes, then attach ProcMon to capture detailed events. Always run as Administrator for full visibility.
**Free alternative:** N/A — Sysinternals itself is free and best‑in‑class.
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# 2 — Windows Terminal + PowerShell (or PowerShell Core)
**What it is:** Windows Terminal is a modern terminal host; PowerShell is a powerful scripting shell and automation platform (PowerShell 7+ is cross‑platform).
**Why use it:** Replace the old console with tabs, UTF‑8, panes, profiles and integrate PowerShell/Bash/WSL. PowerShell lets you automate administration, parse JSON/XML, manage Windows features and remote systems.
**When to use:** Automating repetitive tasks, managing complex deployments, remote administration, scripted diagnostics, working with WSL, Git, or containers.
**Key features:** Tabbed interface, GPU text rendering, profiles; PowerShell: objects‑based pipeline, modules (PSReadLine, Pester), remoting (Enter‑PSSession).
**Quick tip:** Learn the pipeline (`|`) with objects (not plain text) — it changes how you script; use `Get-Help cmdlet -Full` and `Tab` completion. Configure profiles.json (Terminal) and install useful modules via `Install-Module`.
**Free alternative:** Windows Terminal PowerShell 7 are free; WSL (Windows Subsystem for Linux) complements them.
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# 3 — Docker Desktop (Containers)
**What it is:** Local container runtime and tooling to build, run, and manage Docker containers on your PC (includes Kubernetes optional).
**Why use it:** Reproducible environments, microservices testing, quickly spin up databases/services, and match production container setups. Great for developers, testers, and DevOps prototyping.
**When to use:** Developing cloud‑native apps, running isolated services, testing infra changes, or learning Kubernetes/containers.
**Key features:** Container images, Compose for multi‑service setups, integration with WSL2 on Windows, built‑in networking and volume management.
**Quick tip:** Enable WSL2 backend for better performance on Windows. Use `docker-compose.yml` to version control multi‑service stacks. Clean up unused images with `docker system prune`.
**Free alternative:** Podman (daemonless) or using Docker Engine in WSL/VMs.
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# 5 — Macrium Reflect (Disk imaging backup)
**What it is:** Reliable disk imaging and backup software (full, incremental, differential imaging) used for system backups, bare‑metal recovery, and cloning drives.
**Why use it:** Protect against hardware failure, ransomware, or bad updates — create bootable rescue media and restore entire systems or individual files quickly.
**When to use:** Before major OS upgrades, migrating to a new SSD, or as part of a regular backup strategy for system images.
**Key features:** Disk cloning, scheduled backups, incremental images, verify images, rescue media builder.
**Quick tip:** Keep an off‑site or offline copy of critical images (external drive, NAS). Test a restore with a VM or spare disk occasionally. For free use Macrium Reflect Free for basic imaging.
**Free alternative:** Clonezilla (open‑source imaging), Windows built‑in File History (file backups, not full images).
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