Rise Of The Tomb Raider Unable To Open Bigfile.000

Change your game installation library path to target this new mounted letter Advanced Technical Fixes

Alternatively, use the official software (NVIDIA GeForce Experience or AMD Adrenalin) to download the latest game-ready driver 1.2.1. Summary Checklist via Steam/Epic 1.2.1. Delete bigfile.000 and verify again 1.2.4. Add exclusion to Antivirus 1.2.4. Run as Administrator 1.2.1. Update Drivers 1.2.1. Rise Of The Tomb Raider Unable To Open Bigfile.000

: Windows lacks administrative clearance to execute the files in its default directory. Change your game installation library path to target

Open the Rise of the Tomb Raider setup launcher menu before the main game starts. Open the menu panel. Locate the DirectX 12 toggle switch. Add exclusion to Antivirus 1

This uses bigfile.000.orig as the source and creates a new bigfile.000 . This is for experts only. Doing it incorrectly can make the problem worse.

: For persistent "out of table range" or "unable to open" errors common in older Tomb Raider engines, some community guides suggest running the game from a Virtual Hard Disk formatted as NTFS to fix read/write disk errors.

Steam or Epic Games Store failing to complete the file application process.