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Monday, 2 November 2015

Malwarebytes Anti-Malware: BusinessMessaging.exe System Error

The following error message is displayed at startup:

BusinessMessaging.exe - System Error

The program can't start because Qt5Widgets.dll is missing from your computer. Try reinstalling the program to fix this problem.

This can be caused following the uninstallation of Malwarebytes Anti-Malware from a domain joined computer.

To resolve:

(x86)
Open Registry Editor
Browse to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
Review and delete the Malwarebytes Anti-Malware key

(x64)
Open Registry Editor
Browse to HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run
Review and delete the Malwarebytes Anti-Malware key

Alternatively, from an elevated PowerShell prompt:

(x86)
Remove-ItemProperty -Name 'Malwarebytes Anti-Malware' -Path 'HKLM:\SOFTWARE\Microsoft\Windows\CurrentVersion\Run'

(x64)
Remove-ItemProperty -Name 'Malwarebytes Anti-Malware' -Path 'HKLM:\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run'

or remove the startup entry using msconfig.

27 comments:

  1. Thanks for your blog. I couldn't work out what was causing this!
    I found the key in the following location:
    HKEY_LOCAL_MACHINE\SOFTWARE\Wow6432Node\Microsoft\Windows\CurrentVersion\Run

    ReplyDelete
    Replies
    1. Thanks Man! That was the solution I needed.

      Delete
  2. Thanks! This was the solution I needed.

    ReplyDelete
  3. Hello, I un-installed MalwareBytes and started getting this pop-up, but can't find a Malwarebytes Anti-Malware key in either location noted above.
    Any suggestions? Thanks in advance :)

    ReplyDelete
    Replies
    1. I just had this same issue and no registry keys I was able to edit and ended up just looking on the C drive and under Program Files (X86) folder there was a folder for malware bytes and one file inside called business messaging. I deleted that file and folder and now I am good to go.

      Delete
    2. Thanks Holly, that worked for me :)

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    3. Run msconfig and look through the startup items make sure no Malwarebytes items are checked. hit apply and reboot

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    4. You may also search the registry for "Malwarebytes" and press the F3 key to continue to the next item in the search.

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  4. Great detail info. Save me a lot of time figuring it out

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  5. thanks! very helpful to get rid of it.

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  6. Thank you!! Helped out a co-worker and makes me look good ;)

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  7. I solved it in other way. I used request function on Fix4dll and ask for Qt5Widgets.dll. Then i added it to the registry and Anti-Malware started to work.

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  8. Worked for me - found it in HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Run
    once deleted all good :) [windows 7 32bit btw]

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  9. thanks I deleted the folder on c:\ that worked

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  10. you can also open Start > Run > msconfig
    then go to startup tab, and uncheck the application entry from there, it has the same effect

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  11. Thanks! Appreciate it pal - this works!

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  12. Just happened to me this morning. This was a real help!

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  13. Excellent. I had removed some software to delete another error and then this started popping up. Thanks to you, I have resolved both of my problems.

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  14. Thanks, this fixed my problem too!

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  15. Thank for this posting, it is much helpful. After more than a year, I cleaned it up now.

    ReplyDelete