SAPIEN Technologies

Easiest way is:
All else will be taken care of automatically

You can't break an ini file by adding a section.

To add a section just create the text and add it to the file at the end.

You can download INI file managers from PowerShellGet. Three are a few. Pick the one that suits your needs.

Your question is not understandable. Start here: https://info.sapien.com/index.php/guis/gui-design-best-practice/user-interface-design-for-administrators There are articles for most controls that will explain how to use them. You can also access the articles by right-clicking on the control in the t...

Use a CheckedListBox and load the array of lines directly into the CheckedListBox.

That happens when you try to insert an object into a field. You must only insert value type or objects that cast to strings.

There are methods that do this automatically.

Please understand that technical forums are not a good place to ask others to provide custom scripts for you.

Start by studying how to use Windows features that do automatic backups and simple file and folder syncing and mirroring.

PowerShell is a required program in Windows. It cannot be disabled without causing problems for the system.