How to Activate Windows 10 and 11: Settings, Command Line, Phone Activation and Troubleshooting

Activation is a two-minute job when it works and a maze when it does not. This guide covers the Settings method, the command-line method, phone activation and the troubleshooter, with the error codes decoded.
Haven’t Heard Back from Support Yet? Spam Folders, Wrong Addresses, Reply Times and What to Do

Where support replies end up when they seem not to arrive, realistic response times, and the four details that get a case answered in one message.
What to Send Support When Your Product Key Doesn’t Work: The One-Message Checklist

Support can fix most activation failures in one reply when the first message contains five specific things. Here they are, with a template you can paste and the commands that produce the details.
How to Buy Microsoft Software from GetDigiMarket: A Five-Minute Walkthrough from Product Page to Activation

A first-timer’s walkthrough of buying a Windows, Office or Server licence: how to pick the edition, what to check on the product page, checkout, the instant delivery email and activation.