Взято: http://social.technet.microsoft.com/Forums/windowsserver/en-us/b9e5a4c0-073c-42fd-a390-8b2aee407a4f/task-scheduler-service-schedule-cannot-be-stopped-in-windows-2008-r1-

 

you may also disable (or change) the startup process on the SCHEDULE service with the following:

PSEXEC -i -s CMD

(this opens a CMD prompt with the "NT Authority\SYSTEM" account)

SC CONFIG SCHEDULE start= demand (changes start to MANUAL)

SC CONFIG SCHEDULE start= disable (changes start to DISABLED)

SC CONFIG SCHEDULE start= auto (changes start to Automatic)

in any case, once you have this SYSTEM CMD prompt, you do NOT need to change the startup mode for the SCHEDULE service, but rather simply STOP the service as follows:

SC STOP SCHEDULE

or NET STOP SCHEDULE