The Schemus task scheduler is not starting automatically, but it can run manually via windows task scheduler.
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The Schemus config may have been migrated to another server while the old task scheduler is still searching for the old scheduler file within the Schemus installation folder.
Delete the old windows task scheduler and recreate a new one and point it to the Schemus scheduler file located by default under : C:\Program Files\Schemus (file : schemusc.exe ).
Ensure that the server has no pending Windows updates, in case it has, reboot will be required.