What is SCardSvr.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the SCardSvr.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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SCardSvr.exe file information

Windows Task Manager with SCardSvr
SCardSvr.exe process in Windows Task Manager

The process known as Smart Card Resource Management Server belongs to software Microsoft Windows Operating System by Microsoft (

Description: The original SCardSvr.exe is an important part of Windows and rarely causes problems. The file SCardSvr.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 95,744 bytes (54% of all occurrences), 99,840 bytes and 6 more variants. 
The file is a Windows system file. The program has no visible window. It is a trustworthy file from Microsoft. Therefore the technical security rating is 4% dangerous; however you should also read the user reviews.

Recommended: Identify SCardSvr.exe related errors

External information from Paul Collins:
There are different files with the same name:

Important: Some malware disguises itself as SCardSvr.exe, particularly when not located in the C:\Windows\System32 folder. Therefore, you should check the SCardSvr.exe process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

scardsvr.exe installed when I installed dekart logon program its some smartcard program for windows or something
Itunes 7.5 requires it
lector de tarjetas. se instala con el programa lector tarjetas FNMT
I found out about scardsvr.exe because it was using 98% of my CPU. I found that pulling and re-inserting the smart card resolved the problem.
Windows smart card service, it is a standard component of the OS, it is required if you have any program that uses PC/SC smart card readers or tokens (the system talks to the hardware via this service). You can disable it, but those programs won't work correctly.
  Alex   (further information)
gets infected EASILY, by many viruses! Mainly fraudulent fake anti viuses, including Internet security 2010 virus
  Emma   (further information)
Pegged disk IO on my external USB hard drive. Can safely disable if you don't have any software that needs it.
  Jim Dicks  

Rating chart

Summary: Average user rating of SCardSvr.exe: based on 10 votes with 7 user comments. 7 users think SCardSvr.exe is essential for Windows or an installed application. One user suspects danger. 2 users think SCardSvr.exe is dangerous and recommend removing it.

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Best practices for resolving SCardSvr issues

A clean and tidy computer is the key requirement for avoiding problems with SCardSvr. This means running a scan for malware, cleaning your hard drive using 1cleanmgr and 2sfc /scannow, 3uninstalling programs that you no longer need, checking for Autostart programs (using 4msconfig) and enabling Windows' 5Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the 6resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the 7DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the SCardSvr.exe process on your computer, the following programs have proven to be helpful: ASecurity Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. BMalwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

SCardSvr.exe [all]