How can I make changes in a software after it has been created... is it possible or not..

Answer 1

Debugging and making changes is part of software development. Once created and saved, reopen and make changes.

Answer 2

If you are developing a software using Git VCS is a great choice.
It will help you track changes, see last modifies and what was modified.
Start Learning how to use Git here:
https://www.sololearn.com/learn/1236/?ref=app

Answer 3

That's called cracking.
You can make a search for cracking programs, I'm quit sure there are a lot.
Anyhow you will be needing a Hex Editor

Answer 4

Its possible to do so just like when editing an html file after making it

Answer 5

The software installed on your PC is likely to be compiled. While you can make changes to it, those might not be in the form of the familiar and more readable source code, but as raw binary, and - in case you run it through a disassembler - assembly instructions.

If the software is open-source or you're in the dev team, you can modify source code and then recompile it.

Answer 6

My first thought was metaprogramming, which can be done in C++. Everyone else's answers also apply.

Answer 7

definitely it is possible