Although some users consider defragmentation of SSDs unnecessary, Microsoft experts have previously said that Windows 10 would still defragment SSDs under normal circumstances. The system can be rolled back to an earlier version of Volume Shadow Copy on a monthly frequency when the default setting is turned on.
To simplify operations, Windows 10 comes with a tool called “Disk finishing and optimizing drives” that allows users to see when the trim instructions were last optimized/defragmented/ executed.
In addition, auto-maintenance allows the system to help keep your computer healthy when necessary. Specific maintenance tasks, such as security scans, system scans, disk optimization, or defragmentation, can be performed at any time during their random operation.
It is reported that automatic maintenance functions require the “optimized drive” tool to see if the drive needs to perform optimization (defragmentation if necessary).
However, in the May 2020 update (Version 2004), Microsoft accidentally introduced a bug that prevented the defragmentation tool from properly marking SSDs that had been routinely optimized.
The tool may prompt the user not to optimize it, and if you try to perform the optimization manually, the process is “done immediately” and Windows does not make any changes to the drive.
Embarrassingly, this bug could eventually result in automatic maintenance scheduling defragmentation of the SSD on each restart because the built-in tools do not properly report the scheduled actions.
Fortunately, Microsoft finally fixed the SSD defragmentation bug in the September 2020 update. After the cumulative update of KB4571756 is installed, the system version number will also rise to 19041.508.