The edit didn't faithfully preserve the author's intent.
First, let me say that there's nothing wrong with making significant edits to posts. New users are especially prone to writing posts that include irrelevant, "chatty" information and anyone willing to take the time to carefully clean up such posts is doing the community a favor. I'd like to see more editors willing to roll up there sleeves like you have.
However, while it's clear you significantly improved the grammar of this post (well done, IMO) your edit removed relevant information, which is a step backward for us as editors.
For example, the following information was present in the original post but has no representative counterpart in the edited post (the author's intent was not preserved):
I don't want this AMD driver to be installed.
All that's left of this in the edited post is:
The AMD driver on my PC just doesn't seem to stop updating.
Which leaves the question of What are you trying to do? unanswered and instead makes it sound like the OP is simply annoyed that his driver keeps updating.
My PC works fine with Intel HD graphics 3000 also. So I dont want this drivers.
Which is totally gone in the edit. This is definitely relevant information to the question at hand and needed to be preserved. It not only tells us the OP has another graphics card and what it is, but it also explains his reasoning for getting rid of the AMD drivers.
Bottom line, when we edit, priority #1 is to preserve the author's voice. Improving grammar and making the post easier to understand must always submit to this goal, sometimes at the expense of achieving a perfectly-worded post.
Keep editing. You've got others watching your back, such as the two reviewers who correctly reviewed this edit. You clearly have the ability to make great edits and we'll be a better community with you around.