Method 1: The Target Deletion & Verification Method (Most Reliable)
Running the game as administrator may resolve file access issues:
Relaunch Steam, right-click , select Properties , head to Installed Files , and click Verify integrity of game files . shadow of the tomb raider unable to open bigfile.000
Windows file permissions can block a game launcher from accessing root-level directory items like bigfile.000 if it is installed on your primary C: drive.
If you are using mods (such as texture packs or outfit swaps), these often edit or replace the default bigfile archives. A mod may have tried to patch bigfile.000 and failed. Method 1: The Target Deletion & Verification Method
cannot access its core data files due to corruption, permission blocks, or hardware memory issues .
If this works, you can set it to always run with admin privileges: A mod may have tried to patch bigfile
Below is a comprehensive guide to troubleshooting and fixing this error so you can get back to Lara Croft’s final adventure. 1. Verify Game File Integrity (The Most Effective Fix)
If the game is installed on an or an External HDD ? Your current Windows version (10 or 11)?
is widely considered a technical marvel, delivering breathtaking visuals and a sprawling open-world adventure. However, like many major PC games, it is not immune to frustrating installation and launch errors.