Okay, here is the problem! Started out with Window 8 on new computer, a HP Pavilion g7 AMD dual-core processor. Attempted to dual-boot Ubuntu. Went through all the steps to disable Secure Boot, etc. Somehow in all the different ideas folks have provided me, I have DELETED the MBR (i.e., there is NO NTFS partition), but only Ubuntu partition. So, how do I get back to where I can install a "legal Windows 7" disk - software has NEVER been opened. Whenever I start the computer Ubuntu loads and I can use Ubuntu, except for the fact I keep getting an error saying there is only about 120m of space left as Ubuntu files are at the end of the 750g disk! So, like I mentioned, I really did FUBAR the computer and am needing help to get an NTFS partition back so Windows can install. Any and ALL help is appreciated.