Can't start malwarebytes service

[sidedoor]

The installed version is 3.0.6.1469. I installed it on my Windows 10 desktop. Was unable to start, got a popup warning  "Unable to connect the service".

I looked at services and saw Malwarebytes Service was not started. I started it manually and got a popup window saying "Windows could not start the Malwarebytes Service service on Local Computer. Error 0x80040154: Class not registered"

What is wrong here?

 

[Firefox]

Hello and Welcome to Malwarebytes.

Actually version 3.0.6 is an older version, follow the steps below to get a clean install of the latest version.

Let's try this first.... (It is recommended that you de-activate your Malwarebytes first before un-installing or using the clean removal tool - the tool can only backup the license info for MB3 so if you have MBAM v1 or v2 you have to de-activate it manually)

1. Please follow the steps in this pinned topic to uninstall your current version of MBAM and reinstall the latest build - Malwarebytes mb-clean tool (NOTE: After uninstalling with the mb-claen tool you will be asked to reboot. Once you reboot it will ask you if you want to re-install Malwarebytes, you can select YES (it will download the latest version) or you can download the latest version manually (currently v3.1.2.1733 ) to re-install from HERE)
2. If that does not correct the issue, then please read the following and attach to your next reply the 3 requested logs - Diagnostic Logs (the 3 logs are: mb-check-results.zip, FRST.txt, Addition.txt)
3. NOTE: More info about the latest Malwarebytes 3.1.2 HERE; MB 3 User Guide ONLINE; MB 3 User Guide PDF; MB 3 FAQ: Malwarebytes 3.0 - Frequently Asked Questions
   

Please let us know how it goes.

Thank You,

Firefox

[sidedoor]

Worked like a champ, thank you! I thought I could get away with sequential version updating, but the clean/reinstall has it running and scanning now. 

[Firefox]

Great, glad that worked for you....