You're looking for a license key for BurnAware Premium.
BurnAware Premium: $29.95 for a single-user license, including one year of free updates.
Instant Delivery: Once your payment is processed, the license key is sent immediately to your email.
BurnAware developers, like most software companies, maintain an online blacklist of leaked keys. Even if you find a key that works temporarily, it will be deactivated within days or weeks. The software will revert to the free edition or stop working entirely.