Can't install ROS when there is NTFS partition on RealHW

ReactOS shows me 4 partitions:
1. NTFS
2. Type 15
3. NTFS
4. Unpartitioned space

I am trying to install ReactOS in 3rd partition as well as in 2nd. Setup gives me option to format partition. Seems like it formats it for me, then it asks for setup directory, I leave default "\ReactOS". I hit enter and setup says "Setup could not create the install directory." After restarting computer, it shows exactly the same partitions. It works if you delete that 3rd NTFS partition using D option, but after copying files setup complains "Setup can not install the bootloader on your computers hardisk". And I am not sure if there should be something like "Type 15" partition.

Edijus, bootcd-56093-dbgwin, RealHW, P4VTB motherboard.