HARD DRIVE Fills up for no reason

felix AF

Prominent
Jun 27, 2017
2
0
510
Hi
I have a HDD 1tb
So i was looking at my hdd space and notice there was 60gb of space left so i uninstalled 30gb of games and then i have 96gb of space left.

Yesterday i left my [Windows 10] PC on (locked with password) and came back with 20gb of space left. How do i get rid of the 70gb that filled up randomly??