Windows 10 x64 version 1709 (10.0.16299.309) running Malwarebytes Premium 18.104.22.1688. In the last few days, Windows updates did update to the latest build and I have also upgraded and uninstalled/reinstalled Microsoft Office.
Additionally, Malwarebytes upgraded to 3.4.4 on the 15th. The next day, I experienced problems with Windows not loading the desktop correctly. I would type in my user account password and then it would take a while before loading my desktop with no icons present. The "working in background" mouse icon would appear and the system would not load any further. No startup programs would be loaded in the notification area and I could not click on the Start button. If I pressed ctrl+alt+del I would get an access denied error. On the occasions that I could get so far as ctrl+alt+del and click to load task manager, I would get an access denied error.
I would press the reset button on my PC and it would be a repeat of the above. Finally, on at least the 3rd reset, my desktop would load correctly.
My analysis of the System event log (attached) makes me suspicious that it is the upgrade to Malwarebytes 3.4.4 that is causing the problem because the last entry immediately prior to errors about services not loading (due to access denied) is:
"File System Filter 'MBAMFarflt' (6.3, 2018-02-08T17:51:34.000000000Z) has successfully loaded and registered with Filter Manager."
...and this is the case on all of the occasions that I have been unable to load my desktop properly.
If you examine my event log, you will see the pattern that I am seeing (sort by: Date and Time Ascending).
MB-Check and system event log attached.
I thought of submitting a ticket to support but as there are a number of users experiencing issues upon Windows startup, I thought that I would post here.
I was intending to confirm if Malwarebytes is the issue by uninstalling/reinstalling and/or going back to the previous version, however, I will hold off in case further troubleshooting is required.
Thank you for any assistance.