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What does the mcuihost.exe file do?

The mcuihost.exe process is also known as McAfee UI Host and is a part of McAfee LiveSafe - Internet Security or, as the case may be, McAfee Total Protection. This software is produced by McAfee (www.mcafee.com). An obsolete or defective version of mcuihost.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 mcuihost.exe McAfee UI Host

mcuihost.exe is not part of Windows, but it is important nonetheless. The file mcuihost.exe is found in a subdirectory of "C:\Program Files". Frequently occurring are file sizes such as 962,840 bytes (40% of all these files), 938,144 bytes, 762,648 bytes or, as the case may be, 763,088 bytes.
The original file has been signed by a trusted signature authority. This lets you check your copy to see if it is a counterfeit. The file was developed by a so-called third party provider - and not by Microsoft. This file possesses a digital signature from Verisign.com, which should confirm its trustworthiness. Mcuihost.exe is capable of supervise programs. For this reason, 6% 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 mcuihost.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 mcuihost?

The file spreads very slowly and does not often make an appearance. Therefore, feedback from other users is not yet available.

Summary: source: file.net

How to uninstall McAfee LiveSafe - Internet Security or McAfee Total Protection

To remove McAfee UI Host from your computer, please follow the manual instructions below or use an automatic uninstaller product.

  1. Click the Windows Start Button. You find it in the lower left corner of the taskbar.
  2. Type the word uninstall.
  3. Click Add or remove programs.
  4. Now locate McAfee LiveSafe - Internet Security or McAfee Total Protection in the list of displayed applications.
  5. Click the program, and then click Uninstall.
Remove software in Windows 10
mcuihost.exe McAfee UI Host fix

How to tell if mcuihost.exe (McAfee UI Host) 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 McAfee UI Host. To do this, start "Regedit", then look under "HKEY_LOCAL_MACHINE" > "Software" for McAfee UI Host 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 mcuihost.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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