In some weeks ago all my tasks in scheduled task manager stop working. When i run "sfc /SCANNOW" on cmd it fix some files and after restart server scheduled task working without any problems around 5days then again it stop working a didnt run anything until
another "sfc /SCANNOW"
Obviously, something is corrupt in Windows causing the Task Scheduler to malfunctioning. Have you checked the CBS.log to find out which files are corrupt? For how to read CBS log, please take a look at the below Microsoft KB article.
I also suggest you run In-place Upgrade with a Windows Server 2008 DVD to fix this problem permanently. In-place upgrade will scan and repair the corrupt files while it won’t impact your programs and documents data.
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