What is LU.exe?

The genuine LU.exe file is a software component of Lenovo ThinkPad System Update by Lenovo.
Lenovo ThinkPad System Update is a utility that downloads and installs updates for proprietary Lenovo software. LU.exe runs a process that updates installed Lenovo software. This is not a critical Windows component and should be removed if known to cause problems.

Lenovo ThinkPad System Update downloads and installs updates automatically or manually, as per user-set preferences. The program searches online and requires an active Internet connection. Lenovo ThinkPad System Update supports the Microsoft Windows platform.

The Lenovo Group is a Chinese technology company that offers solutions in consumer electronics, servers, electronic storage devices, workstations, network-attached storage, IT infrastructure and management software, etc. The company is currently the world's largest vendor of personal computers. Lenovo operates in over 60 countries and generates over US$ 43.03 billion in annual revenue. The company was founded in 1984 as Legend but changed its name upon incorporation in 1988. Lenovo is currently headquartered in Beijing, China and Morrisville, North Carolina, USA.

LU stands for Lenovo Update module

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 LU.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 LU.exe related errors

LU.exe file information

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

The process known as Lenovo Updates belongs to software Lenovo Updates by Lenovo(beijing) (

Description: LU.exe is not essential for the Windows OS and causes relatively few problems. The LU.exe file is located in a subfolder of "C:\Program Files (x86)" (for example C:\Program Files (x86)\Lenovo\Lenovo Updates\). The file size on Windows 10/8/7/XP is 1,149,512 bytes. 
The application can be uninstalled in the Control Panel. The program is not visible. It is a Verisign signed file. The file is certified by a trustworthy company. The file is not a Windows core file. LU.exe is able to monitor applications. Therefore the technical security rating is 7% dangerous.

Uninstalling this variant: In case of any problems with LU.exe, you may want to do the following:
  • use the software publisher's support site
  • safely remove the program using the uninstall program of Lenovo Updates (Control Panel ⇒ Uninstall a Program)

Recommended: Identify LU.exe related errors

External information from Paul Collins:

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

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

LU.exe [all]