[Is it fine to disable windows defrag task?]

I have defraggler installed and scheduled for defrags, and want to know if it's fine to disable the Windows defrag task (Task Scheduler Library->Microsoft->Windows->Defrag->ScheduledDefrag) or does Ms's defrag do anything special that defraggler doesn't already do?

[Defraggler scheduled task on a laptop]

I have Defraggler scheduled to do a weekly quick defrag in Task Scheduler.

I want to know if it's safe to have task scheduler stop the defrag if the computer switches to battery power. Is it safe to turn that option on in the Task Properties conditions?

I currently have "Start the task only if the computer is on AC power" selected, but want to turn off the defrag if I unplug my laptop.

 

Is it also safe if the computer goes to sleep (close laptop lid) if the defrag is running?

[Command line switches improvements]

Add a command line option to defrag freespace ( /freespace ) and run at a low priority ( /low ).