hello, i have windows 10, which is installed on my ssd, i have an hdd 500gb, which there being installed some guys, i dont wanna delete them, i wanna install kali linux , do i need to format the hdd to install the kali linux? i cant move them one the ssd cuz they are almost 100gb , and the ssd is 250 gb .. is it imposibble to install the kali linux without format the hhd ?