screenshots and upload tool

ShareX. If you've got a server, you can configure it to upload to your server too.
Otherwise, it gives you plenty of other image uploading options such as Imgur, Dropbox, etc.

Gyazo is one of the best ones, i use it all the time and u do alt c to screenshot something insta

When it comes to recording and streaming games, you need a tool designed specifically for the task. Some YouTubers and Twitchers choose to invest in premium software, but there are brilliant free screen recorders that are just as good as their paid-for counterparts
windows 10 can now do them

+1 for ShareX.

If I am uploading myself, I nearly always use the screenshot tool in Windows/OSX and upload to Imgur.

Look here on nulledbb...
or codecanyon.

Much of scripts

Yes actually I DO! It's this crazy new application ONLY for windows called Snipping tool! Its free but thats not even the best part. IT'S ALREADY ON EVERY WINDOWS 10 PC!!!!!!!

I use ShareX for last one year and i recommended it, has the option of uploading to your own server, e.g. img.example.net/img.png, and much more, upload file, text etc

I can recommend you the programm Lightshot. But you can also simply press "Print" and then you can press CTRL+ V on prnt.sc

+1 Snapshot, just type it in on google, easy to use, rarely crashes and is virus free!