Purchase a 1-device, 1-year license directly from ESET during a sale. For ~$25 per year, that’s $2 per month—less than a coffee.
Use the ESET License Recovery Tool to have your license information resent to the email address used at purchase. eset key finder new
This is the most common method. Search your email inbox for terms like "ESET," "Confirmation," or "Invoice." The activation key is usually sent immediately after purchase. Purchase a 1-device, 1-year license directly from ESET