Come in and talk about tidying up the disk ~
In addition, too many C disks are system disks, which will affect the startup speed and running speed of the system. The default installation location of all downloaded software is disk C, which needs to be changed manually. As for the designation you mentioned, you can just save the system files on drive C and install all the downloaded software on another drive for classification, which will help you find it yourself and reduce disk fragmentation. 360 can be placed on drive C without deletion, and the unsafe software can be placed on another drive.
Disk defragmentation is because when you install or uninstall files for a long time, it will not be completely uninstalled, leaving too many fragments on the disk, affecting the life and running speed of the hard disk, and even leading to bad tracks. If you don't tidy up for a long time, it is recommended to tidy up.