What is PostUpdate.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 PostUpdate.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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PostUpdate.exe file information

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

The PostUpdate.exe process contains no information about its author.

Description: PostUpdate.exe is not essential for the Windows OS and causes relatively few problems. PostUpdate.exe is located in a subfolder of C:\Windows\System32. The file size on Windows 10/8/7/XP is 53,248 bytes. 
PostUpdate.exe is a file with no information about its developer. PostUpdate.exe is not a Windows core file. The software starts when Windows starts (see Registry key: RunOnce, DEFAULT\Runonce). The program has a visible window. PostUpdate.exe is able to manipulate other programs. Therefore the technical security rating is 45% dangerous; however you should also read the user reviews.

Recommended: Identify PostUpdate.exe related errors

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

really from shockwave, just rename it
Its part of shockwave 10
used by adobe to prompt for update of shockwave player
I PostUpdate.exe in the "C:\Windows\System32Macromed\Shockwave 10\" directory and it appeared for the firts time after i updated Shockwave. If you install "Spybot Search & Destroy" on your computer you can easily disable the automatic startup and see that it is marked in the registry as a "RunOnce"file.
This appears to be the Shockwave Update program. Right after I Allowed it access to the internet, the Shockware Updater came up and asked me if I wanted to update Shockwave.
  Bruce Ritter  
Scheint mit dem Programm "Schockwave update" zusammen zu hängen
Seems to be associated with updating of Shockwave player plugins.
Can also be found in C:\WINDOWS\Prefetch. I scanned with updated and latest version of VIPRE and came up OK. My computer also had the System32Macromed\Shockwave10\ file, so I also think it's an updater prompt for Shockwave, Adobe, etc.
  Galen Shane  

Rating chart

Summary: Average user rating of PostUpdate.exe: based on 9 votes with 8 user comments. 2 users think PostUpdate.exe is essential for Windows or an installed application. 3 users think it's probably harmless. 4 users think it's neither essential nor dangerous. One user is not sure about it.

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Best practices for resolving PostUpdate issues

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

PostUpdate.exe [all]