Disc usage in Task Manager shoots to 100 while playing Team Fortress 2 occasionally. How can I fix this?

I play on a lenovo laptop, windows 10, did the same with windows 8, I can play League of Legends and other games just fine. Actually, I think it's Steam games that cause that because The Binding of Isaac and Team Fortress 2 on steam are the only games I know that cause my disc usage to go to 100.