What is vm303_sti.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 vm303_sti.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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Vm303_sti.exe file information

Windows Task Manager with vm303_sti
Vm303_sti.exe process in Windows Task Manager

The process known as Vimicro belongs to software BIGDOG by Vimicro (

Description: Vm303_sti.exe is not essential for Windows and will often cause problems. The file vm303_sti.exe is located in the C:\Windows folder or sometimes in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 61,440 bytes (93% of all occurrences), 49,152 bytes, 53,248 bytes, 31,729 bytes or 81,920 bytes. 
Vm303_sti.exe is not a Windows core file. The application starts when Windows starts (see Registry key: MACHINE\Run). The program has no visible window. Vm303_sti.exe is located in the Windows folder, but it is not a Windows core file. Therefore the technical security rating is 53% dangerous, however you should also read the user reviews.

Recommended: Identify vm303_sti.exe related errors

Important: Some malware also uses the file name vm303_sti.exe, for example Generic.dx (detected by McAfee), and Trojan.Generic.256079 (detected by F-Secure). Therefore, you should check the vm303_sti.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

It is web cam SW (I got this error message after installing Logitech WebCam)
windows 7 - crashed hard drives and lags all time - Uninstall it or find better driver if it is fixed
I haven't installed any web camera on my PC, but vm303_sti.exe is running on my PC somehow.
THE FIX !!! It's a TSR proccess called VM303_STI that is launched at startup belonging to A4 tech webcam. To stop it: start menu - run - type "msconfig" (ok) - goto Startup - search for "VM303_STI" - uncheck it - ok - restart - all done
Came with a Webcam, Apparently its required to use it but i've been hearing things about it. I think it might be smarter just to get a webcam that doesnt give you a potentially adware/spyware application. (Also when i boot up my webcam which is now not working theres weird classical music playing for about 1-4 minutes)
A4 tech webcam
Because of this file my TV Tunner does not work! It may be a webcam driver process but I have to kill it before watching TV.
from A4 tech webcam, locks up cpu to 50%, I blocked them.
More comments can be found here:
    (further information)

Rating chart

Summary: Average user rating of vm303_sti.exe: based on 52 votes with 9 reviews. 9 users think vm303_sti.exe is essential for Windows or an installed application. 10 users think it's probably harmless. 18 users think it's neither essential nor dangerous. 12 users suspect danger. 3 users think vm303_sti.exe is dangerous and recommend removing it. 2 users don't grade vm303_sti.exe ("not sure about it").

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Best practices for resolving vm303_sti issues

A clean and tidy computer is the key requirement for avoiding problems with vm303_sti. 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 vm303_sti.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

vm303_sti.exe [all]