It is a duplicate post, your original is right HERE
Be patient when requesting assistance young padwan!
Like I said in the previous post, are you taking the entire installation down and recreating the array and booting from the Windows CD outside
of Windows or are you launching the install from within?
DELLs + RAID + Attempting to reinstall from within Windows = many unthought through problems.
I am reinstalling from windows cd. I do not want raid 0 but want to install on one of my hard drive. Setup shows that I have 592gb hard drive, when I delete partition and I get to chose new partition which is 610479mb. Once I select new partition, I get error that setup can't create new partition. I did format and tried with same error. I hope this info will help. Thanks in advance.