hi i am new to this stuff and i don't know what is going on in my D drive! It is almost full. I am getting warnings about cleaning unnecessary files. I tried doing that but it didn't clean anything! So, i guess they are important files such as backup or recovery files! I really have no idea if i can delete these files??
Picture of D drive:
Picture of files inside it:
I just want to know if i can delete these files? If No why??