My Computer Shows a Extra Hard Drive

[lastxsight]

For some reason when I went to defrag my hard drive it says there are 3 hard drives when i only have two. Should I be worried?

https://gyazo.com/523fa2286e1e81cc26b06e64fe22c026

I should also mention the reason I'm defragging is I'm having a problem with my computer running slow where my Disk is 100% with only 0.1mb/s being used.

https://gyazo.com/4cb2e9091b66d43880672db9397a7b57

https://gyazo.com/a601f5fbc955124ed44ea75a35492a86

 

[Colif]

the 3rd drive is actually a partition on your main drive, its the recovery partition that windows will auto defrag once a month or so, if you have system restore turned on (it is by default).

what are specs of the PC? what hdd do you have?

it could be a memory leak caused by a driver