This kind of partition configuration let me always have windows and linux at the same time and I can format linux at any time without changing anything on my /home
Device Boot Start End Blocks Id System
/dev/sda1 * 2048 409599 203776 7 HPFS/NTFS/exFAT
/dev/sda2 409600 226192803 112891602 7 HPFS/NTFS/exFAT
/dev/sda3 616818688 625140399 4160856 c W95 FAT32 (LBA)
/dev/sda4 226193406 616818687 195312641 5 Extended
/dev/sda5 226193408 265253954 19530273+ 83 Linux
/dev/sda6 265256960 275019775 4881408 82 Linux swap / Solaris
/dev/sda7 275021824 616818687 170898432 83 Linux