Instantly Fix Cmdagent.exe Errors
What is Cmdagent.exe?
Cmdagent.exe is a Comodo Firewall process that causes high CPU usage and can generate registry-related errors from leftover entries after you uninstall the firewall.
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Cmdagent.exe Increases CPU Usage

The Cmdagent.exe file belongs to the Comodo Firewall and is known to cause 100% CPU usage problems on Windows computers. Additionally, if you try to end the cmdagent.exe process from the Processes tab of the Task Manager, you may get an “Access Denied” error message. You get this message because the file is part of the Comodo Firewall, which might be functional when you try to end the cmdagent.exe process.

File Information

Various methods have been proposed as a solution to resolve the high CPU usage problem by the cmdagent.exe file. However, before implementing any of these you should ensure that the cmdagent.exe file you have is legitimate. The correct location of the file is C:\Program Files\Comodo\Firewall\CPF.exe. If you find the file somewhere else, be warned that it may be a virus, a Trojan or some other form of malware.

Another warning sign to look out for is file size. Known file sizes of cmdagent.exe on Windows XP are 361040 bytes, 495360, 565840, 544512, 569936 and 356944 bytes. If the file that you see is located in a different folder and/or has a different file size, you should approach it with caution.

Resolution Method

Before proceeding, use a trusted antivirus program to scan your PC for infections. An excellent choice would be Antivirus Plus. If you would like to root for more deeply hidden malware, use StopZilla as your anti-spyware program. This spyware detection and removal tool will detect, find and delete spyware, adware and other malware from your system. Another benefit of using StopZilla is its built-in identity theft protection.

After ensuring the cmdagent.exe file on your PC is legitimate, you may proceed to resolve the high CPU usage problems caused by it.

Solution 1: Restart your computer.

Some users have discovered that a simple reboot may fix the issue. However, in certain cases, cmdagent.exe responds to a cold reboot. In others, a warm reboot. To warm reboot your PC, go to Start, click Turn Off Computer, and then select Restart.

You need to perform a cold reboot if your computer freezes and you are unable to turn it off or restart it by selecting Start > Turn Off Computer option. In this case, users usually need to keep the power button pressed until the computer turns off. Many computers have a reset button, and you can cold reboot your PC by pressing this button.

Solution 2: Install the Latest Version of the Comodo Firewall

  1. Download the latest version of Comodo Firewall.
  2. Physically disconnect your PC from the Internet.
  3. Uninstall Comodo Firewall by using Add or Remove Programs or an efficient program uninstaller, such as the Perfect Uninstaller tool.
  4. Shutdown and reboot your system.
  5. Install the latest version of Comodo Firewall that you just downloaded.
  6. Reconnect to the Internet.

Note: To make sure that you don’t get any registry-related errors after you uninstall the firewall, run a registry scan to detect and remove any leftover entries to ensure complete removal.

Solution 3: Manually Update the Comdo Firewall

Many users have reported “error 109″ when a bad update file comes through automatic update. If you face this problem, you may have to uninstall and then reinstall the Comdo firewall. Next, download the update from the Comdo web site and then manually install it on your computer. Also, remember to clean your registry before reinstalling the firewall to ensure that no orphaned entries are left behind.

Solution 4: Check if you have files for review.

If you have files for review, go to My Pending files, click the main screen that has the Waiting for Review link, and then purge these files.

Additional Recommendations for Cmdagent.exe:

Driver Update: Some EXE errors are related to driver problems such as obsolete, outdated or incompatible drivers. A driver update tool is recommended to scan your system for corrupted and outdated drivers and to ensure that all your drivers stay up-to-date.

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