Én ez alapján csináltam:

- Install openelec from the USB stick (This will wipe your drive!!)
- Restart the computer with your live Linux system and start GParted
- You will see 2 ext4 partitions: openelec boot (~250MB) and openelece storage (rest of your drive's capacity)
- Reduce the size of the storage partition to your prefered value (min. 4GB)
- Create a NTFS partition for Windows (and preferably a NTFS partition for your data)
- Shut down the computer and remove the live Linux media
- Restart the computer with the Windows installation media and install windows
- Restart the computer. It wil boot into Windows. Don't worry that there is no sign of openelec at this point
.- Install EasyBCD and start the program. Create a new boot entry. Select the Linux tab and Syslinux as bootloader. Your openelec boot path will be displayed. Adjust all settings (names, default boot, timeout etc.) and save everything.
- Restart your computer. Voilá, the boot menu will be displayed and you can select between Windows 7 and openelec