Windows.devices.smartcards.dll is missing [EXPERT FIX]

Vladimir Popescu
by Vladimir Popescu
Managing Editor
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  • Windows.Devices.SmartCards.dll is a system file, which is more specifically known as a Windows Runtime Smart Card API DLL file.
  • The first solution would be to restore your PC back to the previous restore point. It's easy, just follow our guide below.
  • DLL errors are a serious source of stress, especially when you're trying to work or play. Luckily, we have the Fix DLL errors in Windows 10 section to help you solve this mess.
  • Don't worry if you encounter any system errors because the Windows 10 Errors Hub has all the answers you need to solve the issue.
Windows.Devices.smartCards.dll is missing
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A wide number of users have reported that all of the sudden, windows.devices.smartcards.dll went missing from their PC.

The windows.devices.smartcards.dll file is a program that allows your PC to run multiple software with the same functionality.

Because of the capability of DLL files to be shared depending on the services you use on your PC, they are also exposed to errors.

For these reasons, in this article, we will explore some of the best methods to troubleshoot the missing DLL file to your PC. Read on to find out more.

How do I fix missing Windows.devices.smartcards.dll file?

1. Restore your PC back to the previous restore point

  1. Click on Start button ->type System Restore -> press Enter.
  2. Click on System Restore.System restore - windows.devices.smartcards.dll missing
  3. Follow the on-screen instructions and restore your PC to the previous backup.
  4. Follow method 2 if this step fails.

Run a third-party DLL fixer

There are plenty of third-party programs out there that promise to fix or replace missing or broken DLLs, and most of them stay true to their word. However, if you are to choose just one, then there’s no way you can go wrong with Restoro.

How to use Restoro to fix missing or broken DLLs

  1. Download here Restoro and install it on your Windows 10 PC
  2. Let Restoro perform a full system scan
  3. When the scan is finished, press Clean Now
    • This is when you will have to activate your license key
    • Before the repair process starts, Restoro will create a restore point of your system in case things go wrong
  4. Restoro will now proceed to fix your DLL-related issue.

Note: While Restoro can be downloaded for free, it has limited functionality until you activate it. That being the case, if you want the full benefit of a great PC repair and optimization tool, you should purchase the full license.

2. Run SFC (System File Checker) to restore corrupted and missing files

  1. Press Win+X keys on your keyboard -> select PowerShell with Admin.
  2. Inside the PowerShell window -> type sfc /scannow -> press Enter.sfc command in PowerShell - windows.devices.smartcards.dll missing
  3. Wait for the process to complete, close the PowerShell window, and check to see if the issue persists.
  4. If it does,then follow the next step.

Got a problem with missing DLL files? Fix it in 2 minutes with this guide!


3. Update Windows with the latest releases

  1. Click on Start button -> search for Update -> select Check for updates.Windows update - windows.devices.smartcards.dll is missing
  2. Wait for Windows to check for any updates, then download and install them all.
  3. After this process is completed, be sure to restart your PC if you are prompted to do so.
  4. After the restart is completed, try to see if the issue persists.

4. Manually register the DLL causing issues with Microsoft Register Server

  1. Press Win+X keys on your keyboard -> select PowerShell with Admin.Windows PowerShell - windows.devices.smartcards.dll is missing
  2. Inside the PowerShell window -> type regsvr32 /u Windows.Devices.SmartCards.dll -> hit Enter. (this will un-register your file).
  3. Type the command regsvr32 /i Windows.Devices.SmartCards.dll -> hit Enter (this will re-register your file).
  4. Close the PowerShell window and restart all programs associated with Windows.Devices.SmartCards.dll error.
  5. If this doesn’t solve your issue, follow the next method.

5. Perform a clean installation of Windows

laptop on desk - windows.devices.smartcards.dll missing
If all of the steps above have failed to solve your issue, you will need to perform a clean install of your Windows 10 operating system.

This will re-install and fix all previously experienced issues, but it will take some time to complete.


In this article, we explored some of the best troubleshooting methods to deal with a missing Windows.Services.SmartCards.dll file.

Please make sure to follow the steps provided in this list in the order that they were written.

Please make sure to let us know if this article helped you solve your issue, by using the comment section below.

FAQ: Read more about Windows.Services.SmartCards.dll

  • What is Windows.Services.SmartCards.dll?

Windows.Devices.SmartCards.dll is a DLL file created by Microsoft, which is more specifically known as a Windows Runtime Smart Card API DLL file. It is a system file, very important for the proper running of your OS.

  • What is Windows.Devices.SmartCards.dll is missing error mean?

There are multiple reasons that may cause windows.devices.smartcards.dll error, including the system being infected with malware. So try to perform a full scan of your computer.

  • How to fix Windows.Devices.SmartCards.dll missing error?

First, try to restore your PC back to the previous restore point, then run SFC to restore corrupted and missing files. If these solutions don’t work, read our full guide carefully to solve this error.

Editor’s Note: This post was originally published in July 2019 and has been since revamped and updated in March 2020 for freshness, accuracy, and comprehensiveness.

Editor's Note: This article was originally published in July 2019 and was revamped and updated in November 2020 for freshness, accuracy, and comprehensiveness.
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