Hey. About a week ago, i did a full installation of ubuntu 12.04. No dual boot or something, i only have ubuntu on my computer. But i want windows back, but when i put the windows installation CD in the CD-ROM and try to boot it up, it doesnt work! nothings happening! I have made a partition witch has the file system "NTFS" but the windows installation cd wont but on that partition either. The problem is that i have ubuntu 12.04 as my main OS, so my main partition is ext3/ext4, and the windows installation cd automaticly tries to boot up on that partition instead of the NTFS partition. please help????