: The bigfile.000 may be missing or failed to download completely, often due to disk space issues or interrupted updates.
Suggested message to send to IT or support (copy/paste) "I’m getting the error: 'unable to open bigfile bigfile000 exclusive'. OS: [insert OS/version]. App: [insert app/version]. File path: [insert path], size: [insert size]. I’ve tried closing apps and rebooting. Attached are outputs from lsof/ResMon showing current handles and a screenshot of the error. Please check for locks, permission issues, and filesystem errors."
– If no active process is found, a stale lock may remain. Restarting the host system often clears file-system-level locks. unable to open bigfile bigfile000 exclusive
When a game requests "exclusive" access, it is telling the operating system that it needs to lock the file to prevent other processes from modifying or reading it simultaneously. The error occurs when the OS denies this request because the file is already being used or the game lacks the necessary permissions to apply the lock. Top Solutions to Fix the Error 1. End Background Processes
If the physical sector where bigfile000 is stored is failing, the OS may struggle to grant access. : Run a disk check. : The bigfile
The error message "unable to open bigfile bigfile000 exclusive" typically indicates that a game—most commonly from the Tomb Raider series (such as Rise of the Tomb Raider Shadow of the Tomb Raider )—cannot access its primary data archive
If the above steps do not resolve the issue, consider: App: [insert app/version]
The current process lacks the necessary file system permissions to request exclusive access (e.g., write access or “take ownership” rights).
