As he already said. Install Windows in C, and create D and E drive and create Logical Drive / Extended Partition on the remaining space. Now they would be recognized as free space (marked green).
Now boot into Ubuntu, and it'll automatically detect that free space and then select "Install Alongside Windows".
Though I messed you up badly, wait for him to confirm.
@ico
Hello, I want to keep 100gb for linux
and the rest for windows with drives c,d ,e
how can i do that ?
please reply in detail as i m new to linux
now through windows boot dvd up I cannot find any drives..