After looking throug many forum entries i managed ubuntu to see the installed windows 7 by removing the windows recovery partition. (WARNING: don't do this if you are not familiar with reinstalling windows without using the recovery tools for your computer)
I booted windows and removed the partition in windows. After restarting the Ubuntu installer windows 7 was detected. I read somewhere this is caused by a file that wants to be at the end of the disk and that a minimum of X blocks on the end of the disked should be reserved for this. Using gdisk before i removed the windows recovery partition said: “overlapping the last partition by xx blocks".. I wanted to dual-boot Ubuntu with Windows, but as i use Ubuntu 99% of the time i just wanted Ubuntu to work, no matter what the costs. So i deleted the recovery partition (after making backups of it using asus tools). And Ubuntu installed just wonderful. Unfortunately the UEFI / GRUB / MBR / whatever problems still don't allow me to start windows, but hey Ubuntu is working just fine! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/798285 Title: Installer won't detect existing oS or partition table. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/798285/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs