About this updateBecause Windows 10 updates are cumulative, content from previous updates remains on the hard disk and unnecessarily consumes space. This update forces the removal of outdated cumulative updates and enables the regularly scheduled component cleanup task to free up disk space.
Note Disk space is not reclaimed immediately after you install this update.
After Windows 10 cumulative updates are installed, you experience a reduction in available disk space that is greater than you expect. A lack of available disk space can prevent systems from receiving future Windows updates or upgrades.