What is vm331sti.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 vm331sti.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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Vm331sti.exe file information

Windows Task Manager with vm331sti
Vm331sti.exe process in Windows Task Manager

The process known as VM331 StiMnt or USB Camera belongs to software Lenovo EasyCamera or VM331 StiMnt by Vimicro (

Description: Vm331sti.exe is not essential for the Windows OS and causes relatively few problems. Vm331sti.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 548,864 bytes (56% of all occurrences), 552,960 bytes, 561,672 bytes, 571,928 bytes or 664,031 bytes. 
The vm331sti.exe file is not a Windows core file. The process starts when Windows starts (see Registry key: MACHINE\Run). The file is a trustworthy file from Microsoft. The program has no visible window. Vm331sti.exe is able to record keyboard and mouse inputs and monitor applications. Therefore the technical security rating is 34% dangerous.

Uninstalling this variant: You can uninstall the program using the Control Panel ⇒ Uninstall a ProgramLenovo EasyCamera or use the software publisher's support.

Recommended: Identify vm331sti.exe related errors

Important: Some malware camouflages itself as vm331sti.exe, particularly when located in the C:\Windows or C:\Windows\System32 folder, for example Virus:Win32/Ramnit.J (detected by Microsoft), and Virus.Win32.Nimnul.a (detected by Kaspersky). Therefore, you should check the vm331sti.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 vm331sti issues

A clean and tidy computer is the key requirement for avoiding problems with vm331sti. 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 vm331sti.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

vm331sti.exe [all]