Optional: If you are running an updated modern operating system, ensure is unchecked, as legacy flags can conflict with modern graphics rendering pipelines. Click Apply , then hit OK . 4. Clear Corrupted Registry Configurations

Switch over to the second tab inside this menu, then select Change under Virtual Memory .

Wait for the scan to finish. Steam will auto-redownload any corrupted bytes. Step-by-Step for Epic Games / Xbox App Users

: Right-click the game's executable ( RotTR.exe ) in its installation folder and select Run as administrator . Rise of the Tomb Raider Review

from the game's installation folder, then run the verification tool again to force a clean download. Run as Administrator : Right-click the game’s file (or desktop shortcut) and select Run as administrator to bypass permission blocks. 🛡️ System & Compatibility Fixes Check Disk Space

Once you fix the error, follow these best practices to ensure it never returns:

Inadequate free space on your primary installation drive preventing temporary file allocation.

Disabling conflicting software or malware can help resolve issues with the game. To disable conflicting software:

Another potential solution is to update the graphics drivers to the latest version. Outdated graphics drivers can cause compatibility issues with the game, leading to errors such as the "unable to open BigFile000.top" error. Players can check for updates to their graphics drivers through the manufacturer's website or through a driver update tool.

The bigfile000.tiger file is a massive container archive that stores the textures, audio, animations, and world data for Lara Croft’s Siberian adventure. If the operating system or the game engine cannot access this file, the software crashes. The most common technical culprits behind this issue include:

Right-click it, select , and go to the Compatibility tab. Check Run this program as an administrator . Click Apply and OK. 3. Exclude the Game Folder from Antivirus

If the game starts but immediately crashes, switch to DirectX 11 in the game's launcher settings, as DX12 can cause stability issues on older hardware.