Today, you should try adding your serial number directly into Native Access. If the serial is valid, it will associate the product with your account and allow you to download the legacy installers.
If you purchased it as a digital download (later in its lifecycle), search your email inbox for keywords like "Native Instruments Order" or "Battery 3 License." How to Register and Activate native instruments battery 3 serial number
These files often contain malware, keyloggers, or ransomware that can compromise your entire studio computer. Today, you should try adding your serial number
Native Instruments officially ended support for Battery 3 years ago. While your serial number remains valid for life, the software may not run on newer operating systems like macOS Sonoma or Windows 11 without significant troubleshooting (such as running in compatibility mode or using a "bridge" for 32-bit plugins). Upgrading to Battery 4 Native Instruments officially ended support for Battery 3