Monday, July 22, 2019

What is MCPLGUI.DLL and how to fix it?

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The McPlgUI.dll file has been developed by McAfee Incorporation. The DLL file is digitally signed and checked by the company. The signing authority is provided by the incorporation of Verisign. The program is safe in almost every scenario, because it is used on the Windows platform by an antivirus software. The level of the threat is 0. The DLL file size is 166.3 kilobytes. The latest file version is

The program is used in all latest Windows versions and those running McAfee software. The file can be deleted without affecting the operating system, but it can malfunction the software.

You can see which CPU, memory, disk and network usage causes the McPlgUI.dll module process in the Windows Task Manager.

How to check if MCPLGUI.DLL malware is affected on your computer?

If your system is affected by MCPLGUI.DLL malware, you will notice one or several of the symptoms below:

  1. MCPLGUI.DLL occupies an unusually large CPU memory
  2. Erratic internet connection
  3. Your browser is bombarded with annoying popup ads
  4. Computer screen freezes
  5. PC’s processing speed suffers
  6. You are redirected to unknown websites

To pinpoint the virus file location, take the following steps:

Step 1: Press CTRL+ALT+DEL keys at once to open Task Manager.
Step 2: If you notice the file located outside C:\windows\system32 you should run an antivirus scan to get rid of the malware.

How to Fix MCPLGUI.DLL Errors?

Step 1: Use Microsoft Register Server to manually register MCPLGUI.DLL

When you install software that uses the MCPLGUI.DLL dependency, the software should automatically register the file for you. In some cases your DLL file may not register properly, and as a result, will provide a “MCPLGUI.DLL not registered” error. Fortunately, you can use a built-in utility called “Microsoft Register Server” (regsvr32.exe) to re-register your MCPLGUI.DLL file.

How to re-register MCPLGUI.DLL from a command prompt?

  1. Click the button Start.
  2. In the search box type “command “… and do not Hit ENTER!
  3. Hit ENTER by holding the CTRL-Shift keys.
  4. A permission dialog box will be prompted.
  5. Click Yes.
  6. Enter regsvr32/u MCPLGUI.DLL, type the following command.
  7. Hit Enter to make the file UN-REGESTER.
  8. Type the command following: MCPLGUI.DLL regsvr32/i.
  9. Hit ENTER, This will RE-REGISTER your file.
  10. Close the prompt window for command.
  11. Restart the MCPLGUI.DLL error re-launched program.

Step 2: Remove or Restore the file MCPLGUI.DLL from Recycle Bin

This may seem like an obvious or ridiculous step, but you may have accidentally deleted your MCPLGUI.DLL. Therefore, it should be checked to see if your recycle bin is there.

  1. Just double-click on the bin icon for recycling.
  2. Look for MCPLGUI.DLL in the upper right corner.
  3. If MCPLGUI.DLL file appears in the search results, select it, and move it to the following directory:
    1. Windows 95/98/Me = C:\Windows\System32\
    2. Windows NT/2000 = C:\Windows\System32\
    3. Windows XP, Vista, 7, 8, 10 = C:\Windows\System32\
    4. 64-bit Windows = C:\Windows\System32\
    5. After moving your MCPLGUI.DLL file, restart your computer.

Step 4: Drive your computer’s full malware scan

You are likely to experience a malware infection on your PC with your MCPLGUI.DLL error. These intruders can damage DLL- related files, corrupt them, or remove them. In addition, the MCPLGUI.DLL error that you experience might be related to a malicious program component itself.

Step 5: PC Driver updates

Fixed or updated device drivers may be linked to MCPLGUI.DLL errors. Drivers can work one day and, for a variety of reasons, suddenly stop working the next day. The good news is that the device driver can often be updated to fix the DLL issue.

Searching for the exact driver for your hardware device, including directly from Microsoft or its affiliated manufacturers, may be extremely difficult. So, we recommend getting them fix through above steps.

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Last Updated On January 31, 2019