I have had Service Host:SysMain freezing up my computer. I can't even get the task manager to open up.
One thing I think Microsoft should do besides fix this problem, is when I want to to open up the Task Manager it had better open up really quick.
Anyways this Service Host:SysMain will just take over the computer at odd times and I will not be able to do anything and it will freeze up the computer.
The fix the last few days, since it went on and on was to power off the computer.
It is 2020 and I would think Microsoft would have learned by now how to design an operating system.