RAR files are frequently used by attackers to hide malicious payloads, such as Trojans or DLL sideloading scripts, because antivirus programs often cannot scan the contents until they are extracted.

For the safest and most stable experience, it is highly recommended to use the official Adobe After Effects installer, which provides regular security patches and access to the latest features. After Effects system requirements - Adobe Help Center

Pirated versions are often modified in ways that can cause frequent crashes or prevent official updates, leading to a loss of work. Official System Requirements for v18.4

Minimum 16 GB (32 GB recommended for better performance). GPU: 2 GB of GPU VRAM (4 GB or more recommended).

15 GB of available hard-disk space for installation.

Intel or AMD Quad-Core Processor (64-bit support required).

Microsoft Windows 10 (64-bit) version 1903 or later.