Just to make sure I understand - if you right-click the task and select "Run" in Windows Task Scheduler, then nothing happens? If that's the case, there must be something wrong either with privileges (Admin) or its settings.
I had same problem. I created a task, but app would not load on startup. I opened task Manager and edited properties/action.
The path was wrong. I changed the path and rebooted. Still not starting. so I uninstalled app, reinstalled it on Drive D. Changed path in Task Manager and voila! it works on reboot.
There was also a problem on one of the network machines, but there is the OS in such a state that it is time to demolish and re -set it - it will take less time than to correct the error accumulated over the years of work. The problem at first solved the problem in the simplest way - added a shortcut on HWiNFO64 in /All Users/Start Menu/Startup, but in fact it is necessary to repair a system planner of tasks - HWiNFO64 starts as its task. But personally, it is easier for me simple install nnCron (task sheduler like UNIX Cron) as daemon, rewrite all the tasks in crontab's and use it.