What is CDASrv.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 CDASrv.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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CDASrv.exe file information

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

The process known as CDA Server belongs to software Common Desktop Agent by Samsung Electronics CO., LTD (

Description: CDASrv.exe is not essential for the Windows OS and causes relatively few problems. The CDASrv.exe file is located in a subfolder of "C:\Program Files\Common Files" or sometimes in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 456,704 bytes (21% of all occurrences), 438,784 bytes and 11 more variants. 
The file is not a Windows core file. The program can be uninstalled in the Control Panel. The program has no visible window. There is no information about the author of the file. CDASrv.exe is able to record keyboard and mouse inputs. Therefore the technical security rating is 24% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you run into problems with CDASrv.exe, you can safely remove the program using the uninstall program of Common Desktop Agent (Control Panel ⇒ Uninstall a Program).

Recommended: Identify CDASrv.exe related errors

Important: Some malware camouflages itself as CDASrv.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the CDASrv.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

Installed as part of Samsung Easy Print Manager
I also have a Samsung printer for more than a year. A weeks ago, together with the update to Windows 8.1 my keyboard input was slow. After a long search it appeared that CDA server was causing this. I disabled it in the Windows startup settings. I can not remove it through the control panel, because it is not mentioned there. I could remove the files of course, but for now all works fine.
Driver for Samsung printers, it works in tray labeled as 'Samsung Easy Printer Manager'
On my system it appears supporting the Samsung Easy Printer Manager for laser printer ML-2160 series. If I manually end the process (CDASvr.exe) in the Windows Task Manager, the printer icon disappears from the notification area.
  Mario Celso Fassini  
Used by my Samsung laser printer. Slows down startup. no problem if u disable.
  brendan reid  
Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run It's Samsung's Easy Printer manager file. CDASrv.exe: Samsung's CDA Software Service Management Software. Note: Located in \%Program Files%\Common Files\Common Desktop Agent\ Comes with Samsung's printer drivers program (CD or download). Location: \%Program Files (x86)%\Samsung\Easy Printer Manager. When the Easy Printer Manager app is uninstalled, the item from program files, the entry CDAServer disappears from registry and .exe file also disappears.
If it is from/needed by Samsung printers, then why is the publisher unknown?
MikeO, I found "Samsung Easy Print Manager" listed in Programs and Features, under Control Panel. My USB trouble started also following a recent Printer driver update. I uninstalled SEPM; will see what difference may occur.
CDASrv.exe id installed as part of Samsung Easy Print Manager and is not malware if you have a Samsung printer installed. If disabled as a process it just removes Icon from startup and from taskbar. I have tested the service and it is definitely part of Samsung printer software
  Darrell Reinbolt  
From the AVAST! user forums: • AVAST NG A hardware based virtualization solution capable of running each Windows process in standalone safe virtualized environment (VM) and fully integrated to your desktop. Each process is executed in its own instance of VM, which means totally isolated from your other applications. This feature is now powering the Avast DeepScreen, resulting in better detection. The technology will also eventually power the Sandbox and SafeZone components (although it does not now).
  Dan Desmond   (further information)
That process was eating up more than 700mb on my pc so thinking that it was a virus I disabled CDASrv from auto load at startup and my Samsung M2070FW stopped sending scans to the active windows user default scans folder. Was able to send scans again only after reactivating autostartup and rebooting the pc.
Running Windows 7 CDASrv.exe slows down keyboard input. When process disabled keyboard input is flowing freely again.
Was installed with my Samsung M2020W laser printer. CDASrv.exe on my computer is digitally signed by Samsung Co. However, the certificate has been revoked by Verisign, which is cause for concern.
  Gunter Seydack  
it is continuously opening multiple ports on the machine through the firewall over and over. will not stop.
Driver for Samsung M2070 printer, it works in tray labeled as 'Samsung Easy Printer Manager'
It is needed to use Samsung laser printer. It is part of Samsung Easy Print Manager. If you are not using Samsung laser printer then it can safely be removed.

Rating chart

Summary: Average user rating of CDASrv.exe: based on 26 votes with 16 user comments. 8 users think CDASrv.exe is essential for Windows or an installed application. 8 users think it's probably harmless. 8 users think it's neither essential nor dangerous. One user suspects danger. One user thinks CDASrv.exe is dangerous and recommends removing it. 5 users don't grade CDASrv.exe ("not sure about it").

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Best practices for resolving CDASrv issues

A clean and tidy computer is the key requirement for avoiding problems with CDASrv. 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 CDASrv.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

CDASrv.exe [all]