What is WECPUpdate.exe?

The genuine WECPUpdate.exe file is a software component of Windows Essentials Media Codec Pack by MediaCodec.Org.
An automatic updater for the Windows Essentials Media Codec Pack, this process routinely contacts the MediaCodec server and checks for updates to any audio or video codecs. The Windows Essentials Media Codec Pack contains a huge amount of multimedia codecs that it integrates into Windows Media Player to enable the playback of virtually any fie. MediaCodec is an LLC formed for the distribution and support of this software.

WECPUpdate stands for Windows Essential Codec Pack Auto Update Service

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 WECPUpdate.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.

Click to Run a Free Scan for WECPUpdate.exe related errors

WECPUpdate.exe file information

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

The process known as WECP Auto Update Service belongs to software Windows Essentials Media Codec Pack or Windows Essentials Media or Update Service or Windows Essentials Media Codec by MediaCodec.Org (

Description: WECPUpdate.exe is not essential for Windows and will often cause problems. The file WECPUpdate.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 258,048 bytes (63% of all occurrences), 249,856 bytes and 4 more variants. 
It is not a Windows system file. The program is not visible. The process uses ports to connect to or from a LAN or the Internet. Therefore the technical security rating is 56% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you are having problems with WECPUpdate.exe, you may also do the following:
  1) uninstall the program using the Control Panel ⇒ Uninstall a ProgramWindows Essentials Media Codec Pack or Windows Essentials Media
  2) go to the software publisher,, for advice.

Recommended: Identify WECPUpdate.exe related errors

Important: Some malware camouflages itself as WECPUpdate.exe. Therefore, you should check the WECPUpdate.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

codecs to allow other formats to play via MediaPlayer;
Uses a great amount of RAM, stays resident
I found it running 4 threads on a coreI7 processor, causing the cooling fan to run at max speed and noise. Removed it. Do not what the consequences will be.
  jean-pierre barasz  

Summary: Average user rating of WECPUpdate.exe: based on 2 votes with 3 user comments. One user thinks it's neither essential nor dangerous. One user suspects danger. One user is not sure about it.

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Best practices for resolving WECPUpdate issues

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

WECPUpdate.exe [all]