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What does the kpf4ss.exe file do?

The kpf4ss.exe process is also known as Kerio Personal Firewall (Version 4 - Service) or, as the case may be, Sunbelt Firewall Service and is a part of Sunbelt Kerio Personal Firewall (Version 4) or, as the case may be, Sunbelt Personal Firewall. This software is produced by Sunbelt Software (www.sunbelt-software.com) or, as the case may be, Kerio Technologies (www.kerio.com). An obsolete or defective version of kpf4ss.exe 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 kpf4ss.exe Kerio Personal Firewall

kpf4ss.exe is not part of Windows, but it is important nonetheless. Kpf4ss.exe is found in a subdirectory of "C:\Program Files" - normally C:\Program Files\Kerio\Personal Firewall 4\. Frequently occurring are file sizes such as 1,234,480 bytes (25% of all these files), 1,617,920 bytes, 1,368,064 bytes or, as the case may be, 1,222,192 bytes.
To remove the file and its related software from your computer, click Programs in Control Panel This kpf4ss program does not appear as a visible window, but only in Task Manager. This process is connected to a server on the Internet or in your local network. This file is no part of Microsoft Windows. Kpf4ss.exe is capable of make itself undetectable by other programs. For this reason, 35% of all experts consider this file to be a possible threat. The probability that it can cause harm is high.

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 kpf4ss.exe. 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 kpf4ss?

Its the service for Kerio Firewall (further information...)
kerio personal firewall (further information...)
Deniz Oguz
That is eating up my PC's CPU time, average 98%, and slowing down all applications. Everything seems to work fine without it except for Kerio Personal Firewall 4.
It is Kerio Firewall, awesome protection, I love it!

Summary: 11 users judge kpf4ss.exe to be an essential file that should not be touched. 3 users consider it harmless. However, one user considers this to be a suspicious process and would like to get rid of it. source: file.net

How to uninstall Sunbelt Kerio Personal Firewall or Sunbelt Personal Firewall

kpf4ss.exe Kerio Personal Firewall fix

To remove Kerio Personal Firewall 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 Sunbelt Kerio Personal Firewall or Sunbelt Personal Firewall in the list of available programs.
  5. Click Uninstall.

How to tell if kpf4ss.exe (Kerio Personal Firewall) 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 Kerio Personal Firewall. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for Kerio Personal Firewall 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 kpf4ss.exe 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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