Any risks on getting rid of Windows? Also any easy ways for me to do it

[mahesh]

Hi, I'm relatively new to Ubuntu and Linux in general, but I'm loving it so far, and since I'm no longer using Windows, i wanna delete it, but my question is, how safe is it for me to do it?
And in order for me to do it, do i have to install linux all over again and go with the option to keep only ubuntu? Or is there any other option to do it?
I'm using ubuntu 20.04