Windows is a very simple and easy to understandable OS for anyone. But in reality, a lot of complex and complicated components run behind the scene to function properly. A single change can change its behaviors and send an error pop-up on the screen.

And CDP.dll file missing or Error status 0xc000012f is one of them. However, CDP.dll is preciously known as Dynamic Linked Library files or DLL files. A necessary file component to install and open a program or game.

There could be several reasons to face these issues like corrupt files, misplace dll files, virus affection, or many others. But if you want to get rid of it and don’t know how to. Here’s the tutorial on how to fix CDP.dll file is missing error in Windows to follow.

How to Fix CDP.dll File is Missing Error in Windows

If you are getting this issue every now and then. Normally it happens only when you download programs from unfaithful sources. But fortunately, you can fix it easily by following our shared methods below.

1. Update Windows

Keeping Windows up to date is one of the best practices to maintain its performance and security. Outdated Windows users can face such problems. And possibly dll file error is popping up because of outdated Windows.

Updating adds new features for better performance and tackle with vulnerabilities more efficiently. Even it helps to fix known bugs. Restart the system after the download and install the update.

  1. Press Windows > Settings > Windows updates.Windows Update
  2. Then click on the Check for updates.Check for updates
  3. Now download and install the latest version of Windows.

2. Restart Windows

People just started troubleshooting without knowing the problem and its solutions, dll file missing could be a reason for simple malware issues or heavy usage of CPU and memory on other tasks.

Even restarting helps to clear out bugs, glitches, and unimportant data, which indirectly involves installing other programs. It allows the system to run efficiently by removing temporary files and programs.

Thus, before performing other troubleshooting, try to restart the system. And check CDP.dll file is missing error is fixed or not? Otherwise, follow the other shared method.

3. Run Full Virus and Malware Scan

You never know what has inside a program you have downloaded recently or in an existing program. Therefore, scanning for malware becomes the most necessary fix. If you find any problem, take action in this regard.

  1. Press Windows > Settings > Privacy & security.
  2. Now click on Windows security.Privacy & Security - windows security
  3. Next, click Virus & threat protection.
  4. After that, you need to click on the Scan options.
  5.  Now choose Full scan from the list and hit the Scan now button.

4. Run SFC Scan and DISM Scan

SFC scan or System File Checker helps to detect problems with installations and updates. Replacing corrupt and missing flies with the right is a key role of the SFC scan. If the system hits the issue of any corrupt files, here is the fix.

  1. Press Windows > search Command Prompt > Run as administrator.
  2. Then type this command on CMD, and hit the enter button.
    sfc /scannow
  3. Your corrupt file will be replaced or removed.


If SFC scan failed to solve the problem, you can run DISM scan too.

  1. Press Windows > search Command Prompt > Run as administrator.
  2. Now type the following command on CMD, and hit enter.
    dism /online /cleanup-image /restorehealth
  3. It might take a few minutes to restore good health in the place of corrupt stored files.

Once it finds out the corrupt file, functional files took place automatically. Don’t forget to restart the system after applying both methods one by one.

5. Download dll Files in Windows

If you want to download and add dll files manually, then this could be another considerable and fruitful method. Here’s what you need to follow.

  1. Visit
  2. You will get the search box, search for CDP.dll files.
  3.  Now many files will appear.
  4. Select and download CDP.dll file.
  5. Extract the file, and copy dll file.
  6. And paste over C://drive > Windows > System 32. The file will be added and configured.

6. Process Clean Boot

A clean boot helps to determine what is necessary to perform the system at a basic level. When troubleshooting on installing a program, a clean boot is one of the best practices you should perform.

  1. Press Windows > search for msconfig > Open System Configuration.
  2. Now head over to the Service tab, and now checked to Hide all Microsoft Services, and then click on Disable all.
  3. Next, click on the Startup tab, and open Task Manager.
  4. Here in the Task Manager, disable all items which are enabled.
  5. Come back to System configuration, and heads to the Boot tab. Now check the Safe boot, next, click on Apply, and then Ok.

7. Reinstall Program Again

Sometimes we are unable to perform installation and open a program because of glitches, power outages, and other factors. But it doesn’t mean the system got some serious issues with running the program properly. Even it happens when the system detects a corrupt file on the app or program.

We already shared a method how to deal with existing corrupt files. But if your newly downloaded flies bring unwanted guests, you may face this problem. Before installing the app or program, always cross-check the source of the file.

If you get this kind of error log, then you may try to reinstall the app one more time. This still doesn’t work out for you. You should re-download the app from other trusted sources.

Final Words

Signing off – that’s everything you need to know about how to fix CDP.dll file is missing error in Windows. I hope shared methods will solve your hassle. If you are still facing the issue, don’t forget to share your experience.


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