Hello, I have an hp 2000 with windows 8 os. I have installed windows 7 ultimate on the C: partition. Heres the peoblem...when i run windows loader, i get an error saying unsupported partitions. Now I have ran many programs to try and fix this but no luck... I have enabled legacy in bios... I have noticed that my partitions are gpt....Now if im not mistaking dont i need mbr partitions to run windows 7. I have tried many keys and generators but i still get the error. Also, I do understanf that if I make a bootable os disk then i can run installation from boot up which should allow me to edit the partitions. However The disk I have only works while im logged on to my os. So i realy think the files on my disk are not iso for the fact that when I try and boot start it I get an error saying no bootable device found. Unless im missing a boot file on my disk. this is how my partitions look: C: (NTFS) GPT (DATA PARTITION) D: RECOVERY (NTFS) GPT (DATA PARTITION) *: WINRE (NTFS) GPT (UNUSED PARTITION) *: (FAT32) GPT (EFI SYSTEM PARTITION) *: (UNKNOWN) GPT (RESERVED) *: UNALLOCATED GPT *: UNALLOCATED GPT Now I can created a windows 7 disk that I can run on boot up, but my question for that is which partitions can I delete and which ones should I keep. Also is the C: partition the partition I need the os on? With that said, will i be able to change the partitions from gpt to mbr during this installation step?