C drive filling up

[Jaco3401]

When open my computer it shows my 240 gig ssd has only a few gigs free. Well I dive farther into the drive i can only find around 60 gigs of files... Where could the excess be?
I download all games and most other programs to one of my other drives

 

[dodger46]

Windirstat should reveal all...
https://windirstat.info/index.html