What is ntpd.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 ntpd.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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Ntpd.exe file information

Windows Task Manager with ntpd
Ntpd.exe process in Windows Task Manager

The process known as Network Time Protocol Daemon belongs to software Network Time Protocol or NTP 4171 by Meinberg Funkuhren GmbH und Co. KG or Meinberg Funkuhren ( or Default Manufacturer.

Description: Ntpd.exe is not essential for the Windows OS and causes relatively few problems. Ntpd.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 241,136 bytes (26% of all occurrences), 245,648 bytes and 6 more variants. 
The ntpd.exe file is a file with no information about its developer. The program has no visible window. The ntpd.exe file is not a Windows core file. The software uses ports to connect to or from a LAN or the Internet. The ntpd.exe file is digitally signed. Therefore the technical security rating is 55% dangerous, however you should also read the user reviews.

Uninstalling this variant: You can uninstall Network Time Protocol or Ntp, update it, or get help from the software vendor. Click on to update it, click on for support, or click on Network Time Protocol or Ntp in Windows Control Panel (Software or Programs category) to uninstall it.

Recommended: Identify ntpd.exe related errors

If ntpd.exe is located in the C:\Windows\System32 folder, the security rating is 90% dangerous. The file size is 196,608 bytes (60% of all occurrences), 268,288 bytes or 200,704 bytes. There is no file information. The program is not visible. The ntpd.exe file is an unknown file in the Windows folder. It is not a Windows core file. The process uses ports to connect to or from a LAN or the Internet.

If ntpd.exe is located in a subfolder of C:\Windows, the security rating is 72% dangerous. The file size is 724,992 bytes. There is no file information. The ntpd.exe file is located in the Windows folder, but it is not a Windows core file. The program is not visible. It is not a Windows core file.

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

Network time protocol daemon
Network time protocol
  Derek Broderick   (further information)
networktimeprotocol Daemon
Sometimes located in C:\Programs\NTP. Synchronizes PC with accurate time (atomic clocks). Check for a folder C:\Programs\NTP\doc and therein for HTML files with informations. Is not part of Windows, was installed manually.
  Herbert Glarner  
it is used for windows time
NTPD.exe is a Windows port of the Network Time Protocol Daeamon (NTPD); services in *NIX operating systems are called 'daemons'. It allows a computer running Windows to synchronize its time/clock with a computer or Internet server running the NTP protocol. The SNTP service/client protocol integrated into Windows XP and Vista is less accurate.
  David   (further information)
synchronizes PC with time server(s) on the internet
  Jan Hoevers   (further information)
This is software for time synchronization over a network connection. See Often installed as a service ("Network Time Protocol") and always has been installed intentionally by a user with administrative rights.
  Heiko Gerstung (Meinberg)   (further information)
It's used for the Leitch broadcast software clock
time clock synchronisation tool

Rating chart

Summary: Average user rating of ntpd.exe: based on 16 votes with 10 user comments. 13 users think ntpd.exe is essential for Windows or an installed application. 2 users think it's probably harmless. One user suspects danger.

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Best practices for resolving ntpd issues

A clean and tidy computer is the key requirement for avoiding problems with ntpd. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic 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 resmon 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 DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the ntpd.exe process on your computer, the following programs have proven to be helpful: Security 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. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

ntpd.exe [all]