Tool Guides & Tutorials
Step-by-step explainers from the ToolStep editorial team. Each guide documents how a tool, model, or standard actually works — covering the setup path, the settings and specifications that matter, and the limitations worth knowing before you commit. Everything is researched from official documentation and published specifications rather than marketing copy.
12 guides publishedPasskeys Explained: How They Work, What They Protect, and How Not to Get Locked Out
What a passkey is in credential terms, how WebAuthn challenge-response sign-in works, the difference between synced and device-bound passkeys, and the recovery planning that decides whether you are safer or locked out.
October 2026 Security & accountsHow to Verify a Download Before You Install It: Checksums and Signatures
Working checksum commands for Windows, macOS and Linux, how to check a publisher signature, and why a matching hash proves integrity rather than safety.
October 2026 Storage & backupThe 3-2-1 Backup Rule, Applied to a Real Home-Office Computer
A concrete three-copy, two-media, one-off-site plan for one machine — why sync is not backup, how to automate it, and how to run a restore drill that actually proves the data is recoverable.
October 2026 Security & accountsHow to Move Your Password Vault to a New Manager Without Losing Accounts
The order that keeps a vault migration reversible: export, verify, import, reconcile item by item, re-enrol second factors, cut over device by device, then destroy the plaintext file.
October 2026 Audio & conferencingWhy Your Microphone Sounds Too Quiet: Gain, Input Levels, and OS Limits
A four-stage signal-chain check for a quiet microphone — physical path, operating system gain, app processing, then distance and polar pattern — with what gain, input level and clipping actually mean.
October 2026 Audio & conferencingFix Your Webcam Image: Exposure, White Balance, Framing, and Light
Six layers in the order that converges — light, exposure, white balance, framing, frame rate, app processing — and a local-clip test that tells you whether the room, the camera or the meeting app is at fault.
October 2026 Storage & backupHow to Check Whether a Drive Is Failing — and What to Do in the Hours You Have Left
What SMART counters and SSD wear data really report, the failure signals they miss, and an order of operations that protects the data before any diagnostic workload touches the disk.
October 2026 NetworkBlock Ads and Trackers at the Network Level: Pi-hole vs AdGuard Home, Set Up and Verified
Where to place a DNS blocker, how to choose upstream resolvers, commands that prove blocking is live on each device, how to undo a rule that broke a site — and the DoH bypass that quietly exempts some clients.
October 2026 NetworkDoes Your VPN Actually Protect You? Leak Tests, Kill Switch, and DNS
A repeatable protocol: baseline, exit address, DNS, IPv6, WebRTC, a kill-switch test that does not rely on the client cooperating, and the split-tunnel rules you forgot you added.
October 2026 Displays & docksExternal Monitor Setup on Mac and Windows: Resolution, Scaling, Refresh Rate, and Mirroring
Extend versus mirror, native resolution against scaling, why refresh rate is negotiated rather than declared, and how cable revision, dock bandwidth and DisplayLink decide what your desk actually does.
October 2026 AI & modelsClaude AI Watermarks Explained: Does Claude Watermark AI Text?
Anthropic began embedding an invisible, machine-readable watermark directly into text generated by its newest Claude models. This guide explains what the watermark is, how the mechanism works, which models and surfaces carry it, and how it differs from ChatGPT.
August 2026 Screen recordingOBS Studio Complete Guide: How to Record Your Screen for Free
A step-by-step walkthrough of OBS Studio for screen recording and live streaming: what the free, open-source recorder does, the fastest route through first-time setup, the settings that produce clean recordings, and where it falls short of paid alternatives.
May 2026ToolStep guides follow the same research standards as our reviews — see how we evaluate products and our editorial policy.