>  I wrote a correct answer to this post. [My keyboard Num Lock button is missing][1]

You wrote 3 different answers, each adding some extra information to your previous answer.

That is not how Stack Exchange works. Answers should be self contained (and complete).

Please read and take note of [How do I write a good answer?](https://superuser.com/help/how-to-answer)

Note that it does not mention writing multiple answers, each of which builds on the answer you have already written.

Your first answer said:

> so I upload my answer as pdf file at here: https://drive.google.com/open?id=0B7EY10I144RfQzM1T1JGUG1oTzA

That is a link-only answer (not a correct answer). Link only answers are not allowed as:

> Please quote the essential parts of the answer from the reference link(s), as the answer can become invalid if the linked page(s) change.

You also said:

> I am a new user, cannot add more than two links in my answer

You only need 10 reputation points to overcome this limit:

> What are the new user restrictions?

> New users cannot:
> 
> -    post more than two hyperlinks at a time, either in a post or their user profile
> -    contribute answers to protected questions
> -    ask or answer questions too rapidly

If you write good answers it is easy to obtain 10 reputation points (only 1 upvote is required).

> and also write my answer in the 5 next comments. search KKKK for find all my answers.

That is not the way you should write answers on the Stack Exchange network.

> also my another answer was deleted (below link). but with a comment that my suggested program be a crapware. [Windows: Move programs (with registry entries) to a different hard drive][2].

From the [link that you quoted in that deleted answer][3]:

> PickMeApp is still in beta so the publisher does not give any direct
> download link of the app. You will need to register with the service
> and then download and install the app on your computer. Go to
> PickMeApp download page and register with your email address and
> personal information. Once you confirm the registration through email,
> you will be able to download the app using the same URL.
> 
> A word of caution about the installation process, you should be
> careful while installing PickMeApp as it will install extra software
> (crapware) which seems like agreeing to the terms and conditions of
> the software usage.

This is not the kind of software that we like our user to recommend.

> -1 point" is for unrelated answer. for harmful answer. there is not for a mistake

Voting is anonymous and no reason has to be given for a downvote.

Having said that, one of the reasons for downvoting an answer is "This answer is not useful" (which you can see if you hover over the downvote link).

It would appear that someone though your multiple (incomplete) answers to the same question were not useful.

> In two above Questions, some other users post obviously incorrect answers. they don't understand the question. 

The other answers were not obviously incorrect. If you think they are then you should downvote and/or add a comment when you have sufficient reputation.

> I thought this forum is a good place for put my answers to questions that not answered in the entire web (at least by my strongest search)

The Stack Exchange sites are **not** forums. Please take some time and read the [help centre articles][4] so you can see how things work here.


  [1]: https://superuser.com/questions/1125300/my-keyboard-num-lock-button-is-missing
  [2]: https://superuser.com/questions/378480/windows-move-programs-with-registry-entries-to-a-different-hard-drive
  [3]: https://www.maketecheasier.com/transfer-programs-from-one-pc-to-another/
  [4]: https://superuser.com/help