What is kavstart.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 kavstart.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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Kavstart.exe file information

The process known as Kingsoft Security Center or Kingsoft Antivirus Security Center belongs to software Kingsoft Internet Security or Kingsoft Internet Security U or Kingsoft Antivirus by Kingsoft (

Description: Kavstart.exe is not essential for the Windows OS and causes relatively few problems. Kavstart.exe is located in a subfolder of C:\. Known file sizes on Windows 10/8/7/XP are 135,168 bytes (66% of all occurrences) or 98,304 bytes. 
There is an icon for this program on the taskbar next to the clock. The program has a visible window. The kavstart.exe file is not a Windows system file. Therefore the technical security rating is 16% dangerous.

Recommended: Identify kavstart.exe related errors

If kavstart.exe is located in a subfolder of "C:\Program Files", the security rating is 56% dangerous. The file size is 235,928 bytes. It can change the behavior of other programs or manipulate other programs. The program is not visible. The kavstart.exe file is a Verisign signed file. The file is digitally signed. The process starts when Windows starts (see Registry key: MACHINE\Run). The kavstart.exe file is not a Windows core file.

Uninstalling this variant: You could safely remove the program using the uninstall program of Kingsoft Internet Security U (Control Panel ⇒ Uninstall a Program).

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

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

kavstart.exe [all]