Question Disk usage 100% on SSD

[astroloks]

Hello, i recently got a new custom build pc and recently but my disk usage is commonly at 100%. Its either when i am in game or in just windows. but sometimes my disk usage drops down to 0-2 percents and my CPU usage goes to 100%. What should i do my SSD model is ADATA SU630.

 

[rgd1101]

and what is using the ssd?