It’s called dual-booting, and yes there are so many tutorials availiable. But you have to be a little more careful in that process. I do dualboot but almost never uses windows. I have heard situation where windows updates messing linux installs on same drive. The safest route might be to do what others suggested but it is possibe to install that way. Be careful with partitioning and formatting. You also have to determine the sizes for each partitions yourself too