Tuesday, 3 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.
Posted by Tim Salmon at 08:41
Labels: , , ,

26 comments:

  1. Unknown3 November 2015 at 11:33

    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. Unknown1 December 2015 at 14:46

      Thanks Man! That was the solution I needed.

      Delete
  2. Anonymous10 November 2015 at 21:16

    Thanks! This was the solution I needed.

    ReplyDelete
  3. SimonJUL17 November 2015 at 10:37

    It works, Thanks

    ReplyDelete
  4. Unknown17 November 2015 at 14:40

    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. Anonymous17 November 2015 at 15:30

      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. Sharky6 January 2016 at 19:24

      Thanks Holly, that worked for me :)

      Delete
    3. Unknown7 January 2016 at 21:02

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

      Delete
    4. Bacon7 December 2017 at 21:59

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

      Delete
  5. Unknown18 November 2015 at 15:56

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

    ReplyDelete
  6. Unknown26 November 2015 at 07:23

    thanks! very helpful to get rid of it.

    ReplyDelete
  7. S1 December 2015 at 15:41

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

    ReplyDelete
  8. Mr. Lighting8 December 2015 at 13:25

    Thanks for the tip!

    ReplyDelete
  9. Unknown9 December 2015 at 12:10

    Thanks.

    ReplyDelete
  10. Anonymous11 December 2015 at 13:47

    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.

    ReplyDelete
  11. Ivar15 December 2015 at 13:38

    Fixed! Thank you!

    ReplyDelete
  12. Andrew Jory5 January 2016 at 02:47

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

    ReplyDelete
  13. Unknown28 January 2016 at 17:05

    thanks I deleted the folder on c:\ that worked

    ReplyDelete
  14. Unknown16 February 2016 at 11:42

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

    ReplyDelete
  15. Unknown22 February 2016 at 23:32

    Thanks! Appreciate it pal - this works!

    ReplyDelete
  16. Brian Milnes (Cambridge, UK)2 March 2016 at 12:06

    Thanks!

    ReplyDelete
  17. ImasterT8 March 2016 at 14:03

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

    ReplyDelete
  18. PCShogun16 March 2016 at 14:38

    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.

    ReplyDelete
  19. Unknown21 March 2016 at 23:16

    Thanks. Fixed my problem.

    ReplyDelete
  20. Unknown25 April 2016 at 16:06

    Thanks, this fixed my problem too!

    ReplyDelete
  21. Unknown24 October 2017 at 07:25

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

    ReplyDelete

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