I am trying to install Ubuntu alongside Windows 8. I tried to install many times, but when the page of installation to choose the partition comes every time I get confused. 4 partitions are shown there. But in the "My Computer"(of Windows) there are 3 partitions - C,D and E. In the below figure the C partition is shown correctly, and the D and E partitions are not shown separately, they are shown in a combined form. I will provide screen shot of it here :
Can I delete either sda1 or sda2. If yes, how ?