What is Cpqdfwag.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 Cpqdfwag.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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Cpqdfwag.exe file information

Windows Task Manager with Cpqdfwag
Cpqdfwag.exe process in Windows Task Manager

The process known as Diagnostics Application or Compaq Diagnostics Application appears to belong to software Remote Diagnostics Enabling Agent or Compaq Remote Diagnostics Enabling Agent by Hewlett Packard ( or Compaq Computer (

Description: Cpqdfwag.exe is not essential for Windows and will often cause problems. The Cpqdfwag.exe file is located in a subfolder of C:\Windows (usually C:\WINDOWS\cpqdiag\). The file size on Windows 10/8/7/XP is 212,992 bytes. 
It is not a Windows core file. The program has no visible window. The file is an unknown file in the Windows folder. The program starts upon Windows startup (see Registry key: MACHINE\RunServices). The program listens for or sends data on open ports to a LAN or the Internet. Cpqdfwag.exe is able to record keyboard and mouse inputs and hide itself. Therefore the technical security rating is 72% dangerous, however you should also read the user reviews.

Recommended: Identify Cpqdfwag.exe related errors

External information from Paul Collins:

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

a compaq-file, never used, but on the system from the beginning

Summary: Average user rating of Cpqdfwag.exe: based on 2 votes with 1 user comment. One user thinks it's neither essential nor dangerous. One user suspects danger.

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Best practices for resolving Cpqdfwag issues

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

Cpqdfwag.exe [all]