Rise Of The Tomb Raider Unable To Open Bigfile.000

The error in Rise of the Tomb Raider is caused by corrupted game files, interrupted updates, or restricted system permissions. This fatal error triggers during launch or map transitions, preventing the Crystal Dynamics engine from reading the compressed resource archives ( .tiger or bigfile formats). Technical Causes of the Bigfile Error

(Optional) If running Windows 11, check and select Windows 8 from the dropdown menu.

: Windows lacks administrative clearance to execute the files in its default directory.

If you have an SSD and an HDD, try moving the installation. Sometimes, older SATA cables or failing HDDs struggle to stream large archive files under load. Rise Of The Tomb Raider Unable To Open Bigfile.000

Even as an administrator, your user account may lack explicit permissions to access system-protected folders.

Add the entire Rise of the Tomb Raider installation folder to the exclusion list 1.2.4. 4. Run the Game as Administrator

: Ensure your storage target has at least 10 GB to 15 GB of free space beyond the game installation requirement so the engine can safely cache temp files. Run CHKDSK : The error in Rise of the Tomb Raider

Windows 10/11 introduces “Fullscreen Optimizations,” which can interfere with how the game reads system memory and files.

Steam can detect and redownload only the damaged parts of BIGFILE.000 .

Your antivirus might be blocking the game from reading bigfile.000 . This is often because the file is large and contains many sub-files, which some scanning software processes as suspicious. : Windows lacks administrative clearance to execute the

A user-friendly tool that helps resolve the "Unable to Open Bigfile.000" error in Rise Of The Tomb Raider by automatically detecting and repairing corrupted or missing game files.

If prompted to schedule the volume check during the next system reboot, type Y and restart your computer. Windows will repair damaged drive sectors automatically upon boot.

Windows may block the game from accessing its own installation folder due to strict permission settings. Step-by-Step Fixes for the Bigfile Error

The error is rarely due to a faulty game disk. Instead, it is usually caused by one of the following: