I've formatted the disk and installed Windows 7 on a pre-installed Windows 8. (UEFI - disabled secure boot)
When I try to install Ubuntu from a live CD, it cant recognize my HDD partitions, not even trying to allocate a partition on ext4, NTFS in GParted live and on windows disc manager. Ubuntu simply can't see the HDD partitions nor the installation of windows, I tried to do something with fixparts but don't know exactly what to do.
Here i put a screenshot.
Edit:
Here I list my partitions:
ubuntu@ubuntu:~$ sudo lsblk -f
NAME FSTYPE LABEL MOUNTPOINT
sda
├─sda1 ntfs Reservado pelo Sistema
├─sda2 ntfs
└─sda3 ext4
sdb
└─sdb1 vfat /cdrom
sr0
loop0 squashfs /rofs
ubuntu@ubuntu:~$ sudo lsblk -l
NAME MAJ:MIN RM SIZE RO TYPE MOUNTPOINT
sda 8:0 0 465.8G 0 disk
sda1 8:1 0 100M 0 part
sda2 8:2 0 97.6G 0 part
sda3 8:3 0 368.1G 0 part
sdb 8:16 0 3.7G 0 disk
sdb1 8:17 0 3.7G 0 part /cdrom
sr0 11:0 1 1024M 0 rom
loop0 7:0 0 962.1M 1 loop /rofs
Ubuntu's Gparted give me a warning when opened:
/dev/sda contains GPT signatures indicating that it has a GPT table. However, it has a fake msdos partition table as it should. Perhaps it was corrupted? Is this a GPT partition table?
sudo lsblk -fandsudo fdisk -l. A screenshot of GParted might help too. If your hard drive(s) aren't listed there at all, provide the output ofsudo dmesg. You can copy and paste command output on the terminal. Please edit your question, if you want to add information. Especially file or program output listings (with the help of the{}button in the editor toolbar) are much more readable there and overall it's best to have everything relevant in one place.