What is sua.exe?

The genuine sua.exe file is a software component of Secunia Personal Software Inspector by Secunia.
Sua.exe is an executable file that runs the update agent for the Secunia PSI program. This is not an essential Windows process and can be disabled if known to cause problems. The Secunia Personal Software Inspector is a program that looks for vulnerabilities in third-party (non-Microsoft) programs which can pose a security risk and leave the computer open to cyber attacks. It automatically updates programs which need security updates. Secunia was founded in 2002 by Thomas Kristensen, Niels Henrik Rasmussen, Michael H Zaman, Thomas Pill, and Jakob Balle for the sole reason of creating software that would address security concerns found in popular software and operating systems. Over the years, Secunia have produced numerous products that offer various levels of security and features tailored for home users as well as large corporate offices. Their range of products include Corporate Software Inspector, Personal Software Inspector, Online Software Inspector and Vulnerability Intelligence Manager.

SUA stands for Secunia Update Agent

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 sua.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 sua.exe related errors

Sua.exe file information

Windows Task Manager with sua
Sua.exe process in Windows Task Manager

The process known as Secunia Update Agent belongs to software Secunia PSI or Secunia Update Agent by Secunia (

Description: Sua.exe is not essential for the Windows OS and causes relatively few problems. The file sua.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 399,416 bytes (35% of all occurrences), 765,144 bytes and 5 more variants. 
The program has no visible window. The sua.exe file is a Verisign signed file. The file is digitally signed. It is not a Windows core file. Therefore the technical security rating is 20% dangerous.

Uninstalling this variant: You could completely remove Secunia PSI (Control Panel ⇒ Uninstall a Program).

Recommended: Identify sua.exe related errors

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


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Best practices for resolving sua issues

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

sua.exe [all]