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How to eliminate OAmon driver problems

The OAmon.sys (TDI Helper driver) file is a Windows driver. Generally, drivers are used by Windows to enable internal components like graphic cards and drives, or external devices, such as printers, backup media or input devices.
Click here to check if you need to update your OAmon driver.

The OAmon.sys process is also known as TDI Helper Driver or, as the case may be, OAmon and is a part of Online Armor Firewall or, as the case may be, OAmon. This software is produced by Emsisoft (www.emsisoft.com) or, as the case may be, Tall Emu Pty (www.tallemu.com.au). An obsolete or defective version of OAmon.sys can cause problems for your computer that can range from slowness to error messages such as these:

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What you should know about OAmon.sys TDI Helper driver

OAmon.sys is not part of Windows, but it is important nonetheless. OAmon.sys is found in the C:\Windows\System32\drivers directory. Frequently occurring are file sizes such as 25,192 bytes (25% of all these files), 30,920 bytes, 32,456 bytes or, as the case may be, 25,600 bytes.
If necessary, you can manually stop or start this driver in the Device Manager. The Device Manager can be found in Windows Control Panel under Hardware and Sound/Devices and Printers/Device Manager. The driver facilitates access to your computer's hardware and accessories. This OAmon.sys process does not appear as a visible window, but only in Task Manager. For this service - unlike Windows' own system services - there is no good description available. The file does not come from Microsoft and is not part of the operating system. For this reason, 40% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

A OAmon.sys file has a 34% certainty of being dangerous if it is found in a subdirectory of C:\Windows. In this case, the file size is usually 40,520 bytes. This OAmon.sys process does not have a visible window, and does not appear on the taskbar. It has a digital signature. This confirms that the producer has been registered with a certificate authority. It is unusual for the service not to provide any indication of how and why it is required. This file does not come from Microsoft and is not part of the operating system. OAmon.sys appears to be a file that was compressed by an EXE-Packer. This technique is often used by trojans to keep the file size small and also hamper debugging efforts. However, this in itself is not sufficient reason to presume malicious intent, since even well-intentioned, professional software producers take advantage of compressed files.

If you see this file on your hard drive or in Windows Task Manager, please make sure that it is not a malicious variant. It's a fact that many trojans try to cloak their true identity by calling themselves OAmon.sys. With the above information or by using tools like Security Task Manager you can determine if, in your case, the file is an undesirable variant.

What do other computer users say about OAmon?

part of Online Armor firewall (further information...)

Summary: One user judges OAmon.sys to be an essential file that should not be touched. source: file.net

How to uninstall Online Armor Firewall or OAmon

OAmon.sys TDI Helper driver fix

To remove TDI Helper driver from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. In Windows 8, look for Control Panel.
  2. Click Control Panel.
  3. Click Uninstall a program.
  4. Look for Online Armor Firewall or OAmon in the list of available programs.
  5. Click Uninstall.

How to tell if OAmon.sys (TDI Helper driver) was uninstalled cleanly

After uninstalling, restart your computer. Then start Windows Explorer and see if there is still a folder with the name of the software under C:\Program Files. Be sure to check the Registry as well for remnants of TDI Helper driver. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for TDI Helper driver or the name of the producer. Always keep in mind that only a computer professional should ever directly delete entries in the Windows Registry.

What to do if a program does not uninstall

The easiest way to remove any kind of software cleanly and accurately is to use an uninstaller tool. Because the uninstaller automatically creates a backup, there is no risk of anything going wrong.

Last but not least

If Windows not working quite right for you, or if startup is taking a long time, or OAmon.sys is causing problems for you, a good Windows diagnostic tool may very well help. This is especially effective when it comes to older computers that have accumulated vast quantities of "garbage data" as the result of many software installs and uninstalls.

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