Hi I have been having this problem since 2.0, but now it's at it's worst. I removed Malwarebytes and reinstalled it, and used the support tool to completely remove everything and that didn't work. I even had a different device and it did the same thing, they were both Windows 10 Pro Version 21H1 Desktops. everything else works perfectly, so I don't understand why Malwarebytes is the only one having the problem.
Event Viewer didn't log any of the failed start up attempts, but I did find a crash that happened while in the middle of using the computer (Not sure what I was doing at the time) don't know if this has anything to do with the issue but I placed it here just in case. Using Malwarebytes Premium V4.4.3