Kali Linux and Partitions

Hello,

I was wondering if there was a way to shrink the partition on Kali Linux. When I was installing Kali Linux it was meant to be a dual boot with Windows 10. I accidentally installed Kali Linux over Windows, and I am now trying to see if there is a way to partition the hard drive so that I may install Windows back on the computer. I'm hoping that someone can help me. For some reason the main partition has a key logo on it and won't let me do anything. Before someone tells me to use google, I have. And unless the issue is Kali Linux isn't working or using Windows to partition the hard drive there is nothing that will help me.

Thanks in advanced.

If you're seeing a key icon, I'll take a guess that you have gparted open.

You can't modify it cause its mounted.

Boot from a Kali Live USB, open gparted and then right click to unmount those drives.

Your can now resize the partitions.

Ok great thank you. It was like pulling teeth to try to get an answer for a way to do things in Kali on google. When it came to partitions it was always doing it in Windows. Thank you again for helping me with this.