: Modern, high-core processors can sometimes overheat or cause decompression to fail if too many cores are active at once.

: Ensure your target drive (usually C:) has enough free space to both unpack and install the game. Disable Antivirus

Antivirus software often flags decompression tools as suspicious, blocking the writing process. Step-by-Step Fixes for The Sims 4 1. Increase Virtual Memory (Page File)

Try these solutions in order. Most users will solve the issue by Step 2 or 3.