What is SUService.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 SUService.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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SUService.exe file information

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

The process known as ThinkVantage System Update Service or System Update or Lenovo System Update Service or McAfee Streaming Update Service belongs to software System or McAfee Streaming Updates or Lenovo System by Lenovo Group ( or McAfee ( or LENOVO (

Description: SUService.exe is not essential for the Windows OS and causes relatively few problems. SUService.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 28,672 bytes (31% of all occurrences), 15,872 bytes and 8 more variants. 
The program has no visible window. SUService.exe is not a Windows system file. The process can be removed using the Control Panel's Add\Remove programs applet. Therefore the technical security rating is 36% dangerous; however you should also read the user reviews.

Uninstalling this variant: The software vendor offers the option to do the following:
  1) uninstall the software System or Lotus Notes using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)
  2) go to the support area [1][2] of the Lenovo website
  3) search for an update [1][2] on the vendor’s website.

Recommended: Identify SUService.exe related errors

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

IBM ThinkPad or Leveno
windows xp uses this to update your pc i think....
Video conferencing software
This is needed for Lenovo System Update to run.
part of Lenovo/Thinkpad software(?)
  Colin Jensen   (further information)
Get rid of it - on our corporate network PCs I've seen it use nearly 400MB of RAM (I've run into numerous instances where people are complaining about a slow PC - and this is the culprit because of the high memory use causing XP to exceed the physical memory amount and hit the swap file)
Lenovo/IBM Thinkpad software
ThinkVantage System Update, for IBM pc systems, used for automatic updates (ThinkPad, TrackPoint, ThinkVantage, Access Conections...)
  Fernando Almeida   (further information)
Lenovo System Updated
This file is an update service that can be used by a few different programs. In my case it was being loaded by Splashtop Desktop Software to search and load updates. Splashtop is an iPhone/iPad app that allows you to see and use your Windows desktop from your iDevice... as long as the service is running in the background. I choose to disable these services and run only when I need them, as I need them. This particular service can be disabled safely, it's only used to update Splashtop automatically. Updates can be done through the software itself when run.
  Dan Bejma  
SUService.exe is an update service installed as part of recent releases of IBM Notes (previously called Lotus Notes). It is NOT harmful ans should not be terminated unless you're an IBM Notes expert and know what you're doing.
  Tony Austin   (further information)

Rating chart

Summary: Average user rating of SUService.exe: based on 11 votes with 11 user comments. 6 users think SUService.exe is essential for Windows or an installed application. One user thinks it's probably harmless. 4 users think it's neither essential nor dangerous. 3 users don't grade SUService.exe ("not sure about it").

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Best practices for resolving SUService issues

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

SUService.exe [all]