I want to install windows operating system on my laptop (originally came with windows, but deleted it because Ubuntu is better for me, but now I have to use Windows, because of my studies).
Few days ago I tried to install Windows 10 using USB stick, but couldn't because Ubuntu didn't boot it.
And that's where my question comes. I want to install Windows and delete Ubuntu just as it was before I installed Ubuntu. Of course, I tried to google this kind of problem, but didn't succeed. I'm not sure, but I guess I need to change the format of my disk, which is ext4. Here is the screen of GParted.
Please feel free to share your knowledge!:)
P.S. If some kind of extra information is needed please say so.
Thank you, best regards.