Windows 7: task scheduler (update>defrag>v-scan>shutdown/S3)

i have successfully setup dd-wrt to wake up my pc via crontab at a specific time. after it's on, i want task scheduler to defrag the pc, then shutdown or S3; or shutdown/S3 after my virus scanner scans all the drives; or update windows then shutdown. this will all be done during the nite so i won't feel any of it during day usage.

this seems more advanced than having task scheduler simply run a program since i want it to shutdown or go to standby after the task is complete. i believe i need to know more about "event IDs" and command switches (etc) to get this done.



also, i'm wondering if task scheduler will run these tasks even though the logon screen is displayed after awake and no password is entered. perhaps i can have task scheduler run these processes with privileges so password entry is unnecessary. please help.

note: S3 = standby