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What is DUC40.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 DUC40.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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DUC40.exe file information

Windows Task Manager with DUC40
DUC40.exe process in Windows Task Manager

The process known as DUC40 belongs to software No-IP DUC or DUC40 by unknown.

Description: DUC40.exe is not essential for the Windows OS and causes relatively few problems. DUC40.exe is located in a subfolder of "C:\Program Files" or sometimes in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 346,624 bytes (42% of all occurrences), 270,336 bytes or 347,648 bytes. http://www.file.net/process/duc40.exe.html 
It is a file with no information about its developer. The file is not a Windows system file. The program has no visible window. The application starts upon Windows startup (see Registry key: Run). Therefore the technical security rating is 50% dangerous, however you should also read the user reviews.

Uninstalling this variant: You have the option to uninstall No-IP DUC software via Windows Control Panel/Add or Remove Programs (Windows XP) or Programs and Features (Windows 10/8/7) or look for help from the software company No-ip.

Recommended: Identify DUC40.exe related errors

Important: Some malware camouflages itself as DUC40.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder. Therefore, you should check the DUC40.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.

Score

User Comments

DUC40: DFMirage Driver. DFMirage mirror display driver allows TightVNC to gain the best performance under Windows. With DFMirage, TightVNC Server can detect screen updates and grab pixel data in a very efficient way. If you use TightVNC as free software, DFMirage is FREE for you as well.
  Butch Crockett   (further information)
Is used to report IP to NO IP so one can run a web server. Its the IP update client for No IP and watches for your ip to change if your NOT using a fixed IP from your ISP.
  Bree Wiliam  
Der Task ist notwendig, um die IP für die DDNS zu ermitteln. Wenn der Task nicht mehr ausgeführt wird, wird die IP nicht mehr Syncroniesiert.
  MineTec   (further information)

Summary: Average user rating of DUC40.exe: based on 3 votes with 3 user comments. One user thinks DUC40.exe is essential for Windows or an installed application. One user thinks it's probably harmless. One user thinks it's neither essential nor dangerous.


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Best practices for resolving DUC40 issues

A clean and tidy computer is the key requirement for avoiding problems with DUC40. 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 DUC40.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

DUC40.exe [all]