Rise Of The Tomb Raider Unable To Open Bigfile.000 |link| May 2026

Fixing "Rise of the Tomb Raider Unable to Open bigfile.000" – A Complete Guide

For fans of survival-action games, Rise of the Tomb Raider is a masterpiece. However, few things are more frustrating than clicking "Play" on Steam or Epic Games only to be greeted by a cryptic error message: "Unable to open bigfile.000."

Bad sectors or file-system errors can corrupt large game archives.

Solution 5: Reinstall the Game (Last Resort)

If all else fails, back up your saves (usually in Documents\Rise of the Tomb Raider), then uninstall and reinstall the game completely. This ensures a fresh, uncorrupted BIGFILE.000. Rise Of The Tomb Raider Unable To Open Bigfile.000

Steps:

Fix #5: Disable Fullscreen Optimizations and High DPI Scaling

Windows 10/11 introduces “Fullscreen Optimizations,” which can interfere with how the game reads system memory and files. Fixing "Rise of the Tomb Raider Unable to Open bigfile

Temporarily disable your antivirus to see if the game launches without it. Run as Administrator : Right-click the game's executable ( ) in the installation folder and select Run as Administrator to bypass potential permission issues. Advanced Troubleshooting Move to Primary Drive

What is the Bigfile.000 error?

Troubleshooting Guide: How to Fix the "Unable to Open Bigfile.000" Error in Rise of the Tomb Raider

Few things are as frustrating as settling in for a gaming session, only to be stopped dead in your tracks by a fatal error. For players of Rise of the Tomb Raider, one of the most common and confusing issues is the error message: "Unable to open bigfile.000."