I want to create a partition in Ubuntu with GParted as to install Windows 8.1 alongside Ubuntu. The problem is that I can't create a partition! I have searched very much (also in here) but although there are countless questions regarding this matter the problem is that they don't work in my case!
Once I open GParted I have the following:
Once I try to resize the drive it doesn't let me:
How can I do it?