Here’s how to do it depending on your platform:
If the two match? Great. The file is intact. If they don't match?
Unstable internet connections can drop packets during massive GTA V downloads, resulting in a corrupted x64a.rpf archive. x64arpf failed crc check gta v extra quality
Faulty or overly overclocked RAM can corrupt data as it is being written from the internet to your local storage. How to Fix "x64arpf failed CRC check" in GTA V
: A failing hard drive or faulty RAM sticks can corrupt your files. How to Fix the x64a.rpf CRC Error 1. Verify Game Files (Easiest Fix) CRC Error Grand Theft Auto PC | Tom's Hardware Forum Here’s how to do it depending on your
If you want to ensure your high-quality mods don't cause further crashes:
If the error persists after all steps, your GPU may have physical VRAM defects. Run Video Memory Stress Test (Video Memory Test Utility by Leonidas) for 30 minutes. If they don't match
Bad sectors on your HDD or SSD physically damaged the file. Step 1: Verify Game File Integrity (The Easiest Fix)