Back to the original post though, why couldn't Kari just nuke and let Window installer repartition for the clean install?
- How do I proceed with clean installing Build 10547 wiping the whole disk? I tried it, got to disk tools in setup, removed all other partitions but the dialog didn't let me to delete the partition C: (yellow highlight)
- Essentially I would like to start from this situation (screenshot from this TF tutorial), whole disk unallocated space, partition it as I want to and install Windows. If this was a BIOS system I could easily do it, the Windows Setup Disk Tools dialog creating the System Reserved automatically when I create the first partition in that unallocated space, but UEFI seemingly lets me to delete all other partitions but not the C: