I'll start by noting that this issue does not exist on one machine, but several machines which are all on the same domain. However, not every machine on the domain has this issue. The machines all use either Windows 7 or Windows 10.
Malwarebytes does not freeze. What happens is at some point during any point after scanning "startup items" the scan will suddenly appear stuck as the "number of objects scanned" will stop increasing. The scan timer will keep ticking the entire time, but no progress is being made. I can pause the scan, and when I resume the scan there is no change in progress. The graphic with the spinning green arrows keeps going as normal even with no progress being made. I can let the scan keep going all night, and when I come back the next day the scan will still be stuck at the same spot as before. Upon finally hitting cancel, the scan acts like something is happening, but nothing ever happens. I am forced to go into task manager and end process on "malwarebytes service" in order to perform another scan. I am able to navigate through all of the other various menus within the program during a scan, etc. The scan is never stuck on the same file, file type, etc. Sometimes it will sit on "Scanning startup items" or "scanning file system" or during "registry items" or even during "heuristics analysis", but the number of objects scanned does not increase.
The only way Malwarebytes can complete a scan is by going to the custom scan menu, choosing the custom scan option, and unchecking "Scan Startup and Registry settings."
I can deselect all other options other than startup and registry settings, and the scan will become stuck during "heuristics analysis".
So far I am still able to complete a threat scan on three different machines out of many that cannot. All machines can complete a scan by unchecking startup and registry settings from the scan. One of these three machines is running Windows 7, while the other two are running Windows 10. Windows and all other programs are up to date. I've tried excluding as well as completely uninstalling and purging the antivirus since that is the only program other than Windows/Microsoft office/adobe reader that is consistent between all machines (removing any or all of these programs does not change the outcome either), but that did not change the outcome of the scan. The antivirus has since been reinstalled.
I'm running out of ideas. Any ideas and help is appreciated. I have tried using 3.2 beta version as well, and there is no change in the outcome of the scan.