What is PrevxCSI.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 PrevxCSI.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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PrevxCSI.exe file information

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

Description: PrevxCSI.exe is not essential for Windows and will often cause problems. PrevxCSI.exe is located in a subfolder of "C:\Program Files". Known file sizes on Windows 10/8/7/XP are 927,288 bytes (25% of all occurrences), 618,040 bytes and 10 more variants. 
PrevxCSI.exe is not a Windows system file. The program is not visible. There is no description of the program. It is a Verisign signed file. The file is certified by a trustworthy company. PrevxCSI.exe is able to monitor applications. Therefore the technical security rating is 33% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you have any problems with PrevxCSI.exe, you can also do the following:
  1) completely remove Prevx CSI or Prevx CSI Plus (Control Panel ⇒ Uninstall a Program)
  2) visit the website.

Recommended: Identify PrevxCSI.exe related errors

If PrevxCSI.exe is located in a subfolder of the user's profile folder, the security rating is 14% dangerous. The file size is 89,600 bytes. The program has a visible window. The file is not a Windows system file. PrevxCSI.exe is able to monitor applications.

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

nothing much, trying to learn how to remove it
I downloaded a free trial from their web site. When it runs, it places trojans and maleware in various places, including the sys32 folder. When other anti virus/maleware packages are run, they do not recognise the 'infections' even though their names are all listed on the internet as 'DANGEROUS'. This company is trading fraudulently by infecting computers that run the free trial and thereby 'frightening the user into buying their product to remove the infections. This company MUST be avouded at all costs.
  The crook buster  

Summary: Average user rating of PrevxCSI.exe: based on 3 votes with 2 user comments. 3 users think PrevxCSI.exe is dangerous and recommend removing it.

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Best practices for resolving PrevxCSI issues

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

PrevxCSI.exe [all]