In 90% of cases, in the game's launcher settings fixes this error instantly. If that fails, administrative privileges and file verification are your next best bets.
Since the error mentions "exclusive" access, it’s possible another program is already "hooked" into the file or the display.
Disable overlays from Discord, Steam, or NVIDIA GeForce Experience, as these sometimes interfere with how a game takes control of the screen. 5. Update Graphics Drivers unable to open bigfile bigfile000 exclusive
Check the or AMD Software app for the latest updates. A "Clean Install" of drivers often resolves deeper handshake issues between the OS and the game.
Wait for the process to finish; it will automatically redownload any corrupted parts of the bigfile. 4. Check for Background Interference In 90% of cases, in the game's launcher
Are you seeing this error on a or a Windows PC , and which specific game are you trying to launch?
Try launching the game in standard "Fullscreen" or "Windowed" mode. 2. Run as Administrator Disable overlays from Discord, Steam, or NVIDIA GeForce
If BIGFILE000 is corrupted or missing a few kilobytes of data, the engine won't be able to open it correctly. Steam and other launchers have a built-in way to repair this without a full reinstall. Right-click the game in your Library . Select Properties > Installed Files . Click Verify integrity of game files .