Paying for software with crypto, explained

A practical guide to buying software with crypto: which coin and network to use, how stores match your payment, what it costs, and where it goes wrong.

What buying Office, Windows or antivirus keys with USDT involves: how delivery works, what a legitimate seller looks like, and how to avoid revoked keys.

USDT exists on several blockchains and they are not interchangeable. How to tell them apart, what each costs, and what happens if you send on the wrong one.

Why crypto orders quote odd amounts, what happens if you send too much or too little, and the exact steps to get an order settled by hand.

Why the same software has keys at $12 and $200, which types get revoked, and how to tell what a seller is really offering before you pay.

0xC004C003, 0xC004C060, 0xC004F074 and the rest: what each activation error actually means, which are fixable, and which mean the key is dead.

Which Windows licences can move between machines, the exact commands to release and reactivate, and what to do when a hardware change breaks activation.

Why activation says a key is already in use, how to tell an honest mistake from a key that was resold, and how to release a key from a machine you still own.

Step-by-step redemption, why region matters more than anything else, and what the common error messages actually mean.