DANDANDO

Hi! Guys I have a question. PC in our company only have one harddisk with 2 partitions (C and D drive) we install OS on first partition, and second partition is for user to save their own data. My question is when I use RIS to re-deploy OS to the pc can we keep existing partition setup and just refresh the first partition(C drive) only? So user can keep their file at D: drive? Thks