


If there's a slow down every month or so, and if the log shows that the built-in defrag hasn't been running as scheduled for some time, then that means for some reason something's not causing the scheduled defrag to run. In general, consider something that follows the prefetch layout. If it's still slow, and it's not caused by some program, then you will likely try a third-party defrag run manually. If there's a slow down, try a manual defrag, or reboot and try that. It will defrag only small files and automatically trim SSDs. That means just leave the internal defrag at default mode. I saw that with one machine that went through repair install. If you defrag manually, it might or might nor speed up. But if you do a lot for the day, including moving around large numbers of files (big and small), testing software by installing and uninstalling, etc., and give no time for it to be idle and shut it down, the the defrag might not cope. That is, if you use the machine for browsing and leave it idle for some time, then the defrag should manage. That's what I experienced maintaining at least six PCs. A lot will depend on how you use your PC.
