Optimize and Defrag Schedule issue

I found similar in some PCs: sometimes the scheduled defrag doesn't run as scheduled, and it's likely because there's something that's interfering with the system that doesn't make it idle. Given that, maybe a third-party program that follows the prefetch layout and algorithm (e.g., don't bother defragmenting large files) can be used.

Also, as an aside, I'm looking at the possibility that real-time CPU optimization might also help, i.e., those that restrain programs that use CPU power unnecessarily. An example is CPUBalance Pro from Process Lasso, which is free. This might also decrease the need for more defragmenting.

Will keep it on manual , once a month ( the safest way )...........

Hi guys, I noticed the same, the task in task scheduler showed a last run time indicating it has never been activated, so I manually ran the defrag task.

I then checked what effect it had, and it ran trim on a ssd partition that had never had trim ran gefore it had status "needs optimising", but the other ssd partitions which were scheduled to run weekly and had a last trim of 17 days ago were not touched. This tells me the task is not the complete problem.

It would seem as has been mentioned already that defrag itself has some kind of internal restrictions as to when it will perform a trim. This doesnt fit in with everything I have read about the trim function (trim supposedly helps after every write), but it may be the case that windows already sends trim commands after every transaction. Hopefully someone can confirm or deny that.