Windows Task Scheduler Broken on Windows Vista, 7, 2008, 2008 R2

Windows Task Scheduler Broken 

PROBLEM:

Windows Task Scheduler Service shows status of startup type as "Unknown". 

SOLUTION: 

Save the following file as *.reg, and run on the Server/Computer that is having the problem. 

repairtsksched.reg

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Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Schedule]
"Group"="SchedulerGroup"
"Description"="@%SystemRoot%\\system32\\schedsvc.dll,-101"
"ObjectName"="LocalSystem"
"ErrorControl"=dword:00000001
"Start"=dword:00000002
"Type"=dword:00000020
"ServiceSidType"=dword:00000001

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This will set the Task Scheduler to default, so that scheduled tasks can be created for routine maintenance jobs.