What is prevx.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 prevx.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 prevx.exe related errors

Prevx.exe file information

Windows Task Manager with prevx
Prevx.exe process in Windows Task Manager

The process known as Prevx 3.0 or Prevx Computer Security Investigator belongs to software Prevx CSI or Prevx Edge by Prevx (

Description: Prevx.exe is not essential for Windows and will often cause problems. Prevx.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 4,150,840 bytes (24% of all occurrences), 6,416,120 bytes and 10 more variants. 
The prevx.exe file is a Verisign signed file. The prevx.exe file is certified by a trustworthy company. Prevx.exe is not a Windows core file. The program has no visible window. Prevx.exe is able to monitor applications, record keyboard and mouse inputs, connect to the Internet and manipulate other programs. Therefore the technical security rating is 21% dangerous, however you should also read the user reviews.

Uninstalling this variant: If you encounter difficulties with prevx.exe, you can also uninstall the associated program (Start > Control Panel > Uninstall a Program > Prevx or Prevx CSI) or contact to assist you.

Recommended: Identify prevx.exe related errors

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

Warning - Harmful Process! Adware
  Primosz   (further information)
W32/IRCBot-TF worm and IRC backdoor
  Tim   (further information)

Summary: Average user rating of prevx.exe: based on 2 votes with 2 user comments. One user thinks it's probably harmless. One user thinks prevx.exe is dangerous and recommends removing it.

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Best practices for resolving prevx issues

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

prevx.exe [all]