How to decrease ubuntu disk space and increase windows' on a dual boot win10/ubuntu 15.04?

Question

I have Ubuntu 15.04 26G in the / 4G in Swap and 70 in /home and i have win10 on a dual boot taking 20G all on a 120G hard drive now i need more space on the win10 partition let's say 20G more and i need to take it from the 70G /home without the risk of losing any data

Answer 1

You can use nice and simple GUI for the partition manager. sudo apt-get install gparted. And than do whatever you want with your partitions.