You can go to drive C to check whether hiberfil.sys and pagefile.sys take up a lot of space. If so, remove the "hibernation" function first.

Open Control Panel → Power Options → Hibernation and delete the "Enable Hibernation" option. At this time, I found that the hiberfil.sys file under drive C had disappeared.

Select Control Panel → System → Advanced and click the "Settings" button in the performance area; Then select Advanced → Change, select the partition where the system is located in the opened virtual memory setting window, and select No Paging File to delete the system partition. Of course, the "virtual intrinsic" can be placed on another disk.

You can put "virtual memory" on another disk, but not on drive C.

Cleaning disks and temporary files regularly with Disk Manager will take up a lot of space.

It is best not to install some software and programs on the system disk.

Did you open the system that comes with the system and restore it? Better turn this off, too.

Right-click my computer-Properties-System Restore-select "Turn off System Restore on all drives"-OK.