How do I pull distro off and leave windows intact?

Okay so I have a dell latitude 7480 with windows 10, and I tried installing parrot os alongside it. Successfully. Now I have to uninstall it because it's causing issues with online school. I tried deleting the parrot partition and now I'm kinda stuck I can boot into bios and when I boot parrot it lets me switch back and forth but I have been unsuccessful in finding a way to remove parrot safely..any help is appreciated. also I can access the grub loader and boot windows. Not sure if there's a better place to post.