Tub Door Installation Step By Step, How Do You Uninstall A Shower Door From A Tub?

Step by step, how do you uninstall a shower door from a tub? - tub door installation

The bathroom has a shower door, to which I wish to take and replace them with a shower curtain. There seems to be screwed, but that everything you screw right next door, and have come out of the door? And sealed the bolt holes, and if so, how? HELP!