How to fix the Windows error code 0xc00000f

Sometimes keeping too much junk on your PC may result in having many errors including error 0xc00000f. It occupies a lot of space on the hard drive, and it causes problems in operation of system files. You can try to clean up temporary files and folders to fix the error.

1. Press 'Windows' + 'R' key
2. Type 'cleanmgr' and hit 'Enter'.
3. Choose the disk you need (usually it's disk C). The utility will start to calculate the amount of disk space you can recover after the cleanup. 
4. In the cleanup dialogue box check all the files and folders you need to clean up. 
5. Click 'OK'.
6. Open the program you've opened before the error appeared to see if the solution helped with the error.
   
   

Viruses and malware are one of the most frequent causes of Windows errors, including error 0xc00000f. 

Run a full virus/malware scan of your PC to see if there's any virus/malware infection. Open the program you've opened before the error appeared to see if scanning your system helped with the error.

File checker is a built-in system tool that can help you to correct many Windows errors including error 0xc00000f. The utility scans for corrupted files and restores them so they can work again. To run File Checker, follow these steps:

1. Type 'cmd' in start search box.
2. In the results, you will see 'cmd'. Right click on it and select 'Run as administrator'
3. Type 'sfc/scannow' in the command prompt window.
4. The tool will start working. Give it time to complete, then open the program you've opened before the error appeared to see if the solution helped.

Windows updates that have been downloaded but not installed often cause problems, and Windows error 0xc00000f can also be the result of pending updates. Check if you have such updates and install them. You also should check and update any outdated PC drivers and drivers for other installed hardware. 

Open the program you've opened before the error appeared to see if the solution helped.

This solution will work only if you have identified a program which causes error 0xc00000f.

1. Open 'Control Panel':
   • Windows 7: click 'Start' button and then on 'Control Panel' (on the right side) 
   • Windows 8: move the mouse to the bottom left corner of the screen and right-click. Select 'Control Panel' in the 'Power User' menu.
   • Windows 10: click 'Start' button and start typing 'Control Panel', then click on the result.
2. Click on 'Programs and Features'.
3. Find the program that causes the error and click on it.
4. Click 'Uninstall/Change' at the top.
5. Follow the instructions on the screen to complete the process.
6. Reinstall the program.

Open the program to see if the solution helped.

You need to check configuration in the Boot Configuration Data (BCD) since it can be the reason that causes error 0xc00000f and many other Windows errors. To fix any problems in the data, you can use the built-in bootrec.exe tool. You need to have the installation media.

1. Boot or reboot your PC and select to boot from the installation media.
2. Select 'System Recovery Options'.
3. Select 'Command Prompt'.
4. Type 'bootrec.exe' in the prompt and press 'Enter'.

The tool will start to run and will build a new BCD, which should make the error go away.

You should try this solution in case all the others didn't help with the error. Performing system restore should work, but you don't need to perform fresh installation of the OS.

1. Click 'Start' button and type 'System Restore', then click it. 
2. Follow the steps of the tool, then choose a restore point when your PC worked without any problems.
3. When restore is complete, your computer will re-start automatically.

Error 0xc00000f should be fixed.