What is LSB.exe?

The genuine LSB.exe file is a software component of Lenovo Service Bridge by Lenovo Group.
"LSB.exe" is the Lenovo Service Bridge which installs as a startup program on certain Lenovo 32-bit and 64-bit Windows computers (Win 7 and later). Lenovo offers it for download from "". It can be uninstalled through the Control Panel's Programs and Features app by selecting "Lenovo Service Bridge." It enhances the user's ability to use eSupport in both directions. It automatically finds and transmits the computer's model and serial number information needed by support personnel, also enabling the support site to branch automatically to the correct information. For product downloads, (e.g., driver updates), the Service Bridge lets the user start, pause, or terminate downloading multiple files at one time. Lenovo, founded in China in 1984 as Legend, known abroad as "Lenovo" since 2003, purchased IBM's Personal Computer Division in 2004 and is now #231 of the Fortune 500.

LSB stands for Lenovo Service Bridge

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 LSB.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 LSB.exe related errors

LSB.exe file information

The process known as Lenovo Service Bridge belongs to software Lenovo Service Bridge by Lenovo ( or Lenovo Group (

Description: LSB.exe is not essential for the Windows OS and causes relatively few problems. LSB.exe is located in a subfolder of the user's profile folder. Known file sizes on Windows 10/8/7/XP are 143,944 bytes (28% of all occurrences), 134,728 bytes and 14 more variants. 
The program is not visible. The LSB.exe file is not a Windows system file. LSB.exe is a Verisign signed file. Therefore the technical security rating is 63% dangerous.

Uninstalling this variant: You could uninstall the program using the Control Panel ⇒ Uninstall a ProgramLenovo Service Bridge.

Recommended: Identify LSB.exe related errors

If LSB.exe is located in a subfolder of "C:\Program Files", the security rating is 50% dangerous. The file size is 156,240 bytes (15% of all occurrences), 156,744 bytes and 7 more variants. The program has no visible window. It is a Verisign signed file. The file is not a Windows core file. The file has a digital signature.

Important: Some malware camouflages itself as LSB.exe. Therefore, you should check the LSB.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

There are no user opinions yet. Why not be the first to write a short comment?

Do you have additional information? Help other users!
What do you know about LSB.exe:
How would you rate it:
Link for more info:
Your Name:

Best practices for resolving LSB issues

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

LSB.exe [all]