Why does C drive fill up on its own?

Question

Hard disks

The local disk C is filling up and at the same time I do not write anything there. Updates are disabled, temporary files take up little space, but I did not change the swap file. What could be the reason and how to clean the disk?

Answer 1

Because the operating system needs to record something in the behavior of the system, programs, security, and so on. Commonly referred to as an event log.

Answer 2

Caches (parrots), hashes, logs, files on the desktop.

Answer 3

A tool to determine what the disk is busy with?

Answer 4

Using Far, you can easily calculate the size of a folder by f3.
C:\Users\username\AppData\Local\Temp look and clean (there are temporary files of any running programs)
and the downloads folder in the user profile (there downloaded from the Internet).
More browser caches