How to Fix the ERROR_WAIT_FOR_OPLOCK Bug Check

The ERROR_WAIT_FOR_OPLOCK error occurs when a process is waiting for an opportunistic lock (oplock) to be granted. It usually comes with the 765 (0x2FD) error code and the An operation is blocked waiting for an oplock message.

Oplocks are a feature in Windows that allow a client to lock a file and cache its data locally, improving performance and reducing network traffic. When a process requests an oplock, it may need to wait for the oplock to be granted, which can result in the ERROR_WAIT_FOR_OPLOCK error.

It is not necessarily an error that needs fixing, but rather an indication of the current state of the process. Typically, a simple system restart will fix the problem, but here’s what else you can do.

How do I fix ERROR_WAIT_FOR_OPLOCK?

1. Check for disk errors

1. Click the Start or Search buttons, type cmd and select Run as administrator from the results.
2. Type chkdsk /f and press Enter to start the scan.
3. Follow the on-screen instructions to check and fix any disk errors.

The ERROR_WAIT_FOR_OPLOCK may often be caused by disk problems so the Check Disk tool will hopefully find any such any potential issues and fix them.

2. Perform a Clean Boot

1. Press Win + R, type msconfig, and press Enter.
2. Go to the Services tab and check Hide all Microsoft services.
3. Click Disable all.
4. Go to the Startup tab and click Open Task Manager.
5. Disable all startup items.
6. Close Task Manager and click OK in the System Configuration window.
7. Restart your computer.

After the restart, the system will run with a minimum processes, allowing you to troubleshoot this error properly.

3. Reinstall Problematic Programs

1. Identify any programs that might be causing the issue.
2. Start by uninstalling any recently installed apps.
3. Reinstall these programs, one by one and ensure they are properly configured.

Software conflicts and app configuration problems may also trigger the ERROR_WAIT_FOR_OPLOCK bug check. If you recently installed any software, try uninstalling them and see if that changes the situation.

4. Update the drivers

1. Press Win + X and select Device Manager.
2. Expand the categories and check if any of the components features a yeloow exclamation mark next to it, indicating an issue.
3. Right-click on the device and select Update driver.
4. Choose Search automatically for updated driver software and follow the prompts.
5. If that doesn’t work, select Uninstall device instead of Update driver in step 3 and restart your PC to allow the system install a default driver.

Faulty or corrupt drivers usually cause bug checks on Windows, so it makes sense to look for the culprit in this case. If the solution above doesn’t work, go to the manufacturer’s website and download the right driver for your system. We also recommend installing a driver updater tool that will automatically fix this problem in just a fraction of the time.

By following these steps, you should be able to resolve the ERROR_WAIT_FOR_OPLOCK error and ensure smooth operation of your system.

You may also be interested in reading our guide on how to fix the ERROR_INVALID_OPLOCK_PROTOCOL bug check because that is another oplock-related issue.

For any questions or solutions we didn’t include, let us know in the comments below.