What is SAService.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 SAService.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 SAService.exe related errors

SAService.exe file information

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

The process known as SiteAdvisor or NACService or SAService Application belongs to software McAfee SiteAdvisor or SiteAdvisor Service or NAC Agent or SAService Application or StillSecure SAService by McAfee ( or NAC or StillSecure.

Description: SAService.exe is not essential for the Windows OS and causes relatively few problems. SAService.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 345,376 bytes (63% of all occurrences), 341,280 bytes and 4 more variants. 
The program has no visible window. It is not a Windows core file. The SAService.exe file is a Verisign signed file. The SAService.exe file is certified by a trustworthy company. SAService.exe is able to monitor applications. Therefore the technical security rating is 31% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you encounter difficulties with SAService.exe, you can uninstall the program using the Control Panel ⇒ Uninstall a ProgramMcAfee SiteAdvisor or NAC Agent.

Recommended: Identify SAService.exe related errors

If SAService.exe is located in the C:\Windows\System32 folder, the security rating is 72% dangerous. The file size is 155,648 bytes. There is no information about the author of the file. It 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. SAService.exe is able to record keyboard and mouse inputs.

External information from Paul Collins:

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

Site Advisor browser ad-on rating sites as safe or unsafe. Protection from adware, spam, viruses, and online scams
  Dan   (further information)
very nice but uses a lot of system resources even when all browsers are closed
  D Moore  

Summary: Average user rating of SAService.exe: based on 2 votes with 2 user comments. One user thinks SAService.exe is essential for Windows or an installed application. One user thinks it's probably harmless.

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Best practices for resolving SAService issues

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

SAService.exe [all]