What is procguard?

Procguard.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if procguard.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for procguard drivers in need of updating

Procguard.sys file information

The process known as ProcessGuard Driver belongs to software DiamondCS ProcessGuard or procguard by DiamondCS (

Description: Procguard.sys is not essential for Windows and will often cause problems. Procguard.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 24,911 bytes (71% of all occurrences), 26,784 bytes or 26,688 bytes. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. There is no detailed description of this service. The procguard.sys file is not a Windows core file. Therefore the technical security rating is 38% dangerous; however you should also read the user reviews.

Uninstalling this variant: If you still experience problems with procguard.sys, you can safely remove the program using the uninstall program of DiamondCS ProcessGuard (Control Panel ⇒ Uninstall a Program).

Recommended: Identify procguard.sys related errors

Important: Some malware camouflages itself as procguard.sys. Therefore, you should check the procguard.sys 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

proc (process)guard. Believe it comes from a company down under as a left over file from a security pgm. Company called "Diamond" something
According to Hackshield (Ahn Lab) This is supposedly detected as harmfull for your computer. You practically cannot play Mabinogi with it ^_^
  Juliet Hardford  

Summary: Average user rating of procguard.sys: based on 2 votes with 2 user comments. One user thinks it's neither essential nor dangerous. One user thinks procguard.sys is dangerous and recommends removing it.

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Best practices for resolving procguard issues

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

procguard.sys [all]