Error code 0xc0000185: what it is and how to fix it

Error code 0xc0000185 almost always appears when a Windows PC starts, usually after a system restart. It almost always manifests itself as a BSOD (or Blue Screen of Death) with the text "Your computer's boot configuration data is missing or contains some errors" followed by an error code.

The message may also be "Your computer requires service. The startup configuration data file is missing some required information." In most cases, you can fix this error quickly.

This error occurs on Windows 8.1 and Windows 7, but is most common on Windows 10.

This error is caused by file corruption related to the startup functionality of Windows PC. A specific file has been deleted or corrupted in some way, or something as harmless as a false shutdown or a new peripheral is corrupting the process.

It could also be caused by malware or faulty hardware, and this error is just a symptom of a growing problem.

Whether this error is a major problem affecting your system or this error simply hints at another, more substantial glitch, there's nothing you can do to fix it until your computer works again.

After trying all these fixes, restart your system and see if it boots normally. If not, move on to the next possible solution.

  1. Restart/reboot the computer . A standard reboot is unlikely to fix this particular problem, but it never hurts to try a full reboot. Windows may fix this issue during startup.

  2. Rebuild BCD. If this error persists, rebuilding the boot configuration data file is the best next step. Access the Advanced Boot Options menu to get started.

  3. Rebuild BCD using boot media. Sometimes, Windows startup problems are difficult to fix because you can't find the repair tool you need to use. While you can use another Windows installation drive, the easier method is to create and use a bootable Windows 10 USB drive. To make one, download the Windows ISO file (free) from one of Microsoft's sources, then burn the ISO file to a USB drive.

    Then rebuild the BCD in Windows, just like you did in the previous troubleshooting step, but this time, boot to your USB drive instead of the main drive.

  4. Perform a system restore. If repairing BCD does not solve the problem, a more drastic approach is to roll the system back to a previous point in time. Using System Restore can remove apps and data, so if you can, back up your data and save it safely on a secondary drive before continuing. However, you need to select it from the Advanced Boot Options menu as you will not be able to boot into Windows normally.

  5. Format the hard drive and reinstall Windows. If you still have trouble starting your PC after completing the above steps, format the drive and reinstall Windows. Before doing this, move your data and programs to the new hard drive as this process will erase the drive.

  • This error usually occurs when downloading apps from Microsoft Store. To fix this issue, press Win + R on your keyboard and enter WSReset . This action will reset the Microsoft Store cache.

  • There is nothing you can do to fix this common PlayStation Network server error. Since the problem is on the server side, you just need to wait and try again.

  • To fix this Call of Duty: Modern Warfare or Warzone error, go to the game's installation folder and delete the following files: .patch.result , .product , vivoxsdk_x64.dll , Launcher.db and Modern Warfare Launcher.exe . Next, open the launcher and run the repair tool to fix any corrupted files.