typically indicates a . This large archive stores the game's core assets, and if it's unreadable, the game cannot launch or will crash immediately. Direct Solutions

How to FIX Rise of the Tomb Raider Not Launching/Not Starting

typically indicates that the game cannot access its main data archive, usually due to file corruption, insufficient permissions, or security software interference. Quick Fixes to Try First Verify Game Files : This is the most reliable fix. In , right-click the game, go to Properties > Installed Files (or Local Files), and select Verify integrity of game files

Click . Steam will automatically detect and re-download any corrupted segments of the bigfile archives.

Run the check (Solution 1) again to download a fresh version. 5. Update Graphics Drivers

| Cause Category | Specific Reason | Likelihood | |----------------|----------------|-------------| | | Incomplete download, patching error, or disk write error | High | | Permission Restriction | Antivirus/ransomware protection blocking game access to .tiger files | High | | File Path/Name Mismatch | Incorrect case sensitivity (rare on NTFS but possible on Linux/Proton) or renamed/moved file | Medium | | Disk Errors | Bad sectors on HDD/SSD where the archive resides | Low | | Third-Party Interference | Overlay software (Discord, NVIDIA GeForce Experience), mod loaders, or file hooks | Medium |

Open the and find the game in your library. Click the three dots (...) next to the game title. Select Manage and click the Verify button.

This error typically appears when the game cannot access or load its large packed data files (bigfile000 and similar). Causes: corrupted game files, missing or blocked files (permissions/antivirus), interrupted installation/update, issues with the platform client (Steam/EGS), or problems with mods/cracked copies. The fix sequence below goes from safest/simple to more involved.

Your security software is designed to protect you, but it can sometimes be overzealous. This is a common source of the "BIGFILE" error, especially when installing mods or unofficial language patches.

The most effective way to resolve this is to have the game platform scan and replace the damaged file automatically. Right-click Rise of the Tomb Raider Properties Installed Files Local Files Verify integrity of game files On Xbox App : Right-click the game, select Verify and Repair Secondary Solutions If verification doesn't work, try these targeted steps:

(Optional) Check and select Windows 8 from the dropdown menu to bypass modern OS kernel conflicts. Click Apply and hit OK . 3. Create Antivirus Exclusions

Here is a comprehensive guide to troubleshooting and fixing this error on PC.

Perform a fresh install on a different drive (preferably an SSD) to rule out hardware failure.

Scroll to Exclusions and click Add or remove exclusions .