I am new to Ubuntu or any Linux OS and have been hearing a few good things about them.

So few days ago I decided to try out the Ubuntu 17.10, after which I installed Gnome Tweak Tool to customize the look and feel. After installing some themes and applying them I found the whitish bar appear as you can see in the photo I attached. I do not like it (hated it also when I used Windows). Please how do I make this go away as I have googled alot about it but cant get anything helpful.

I also have the issue of my Windows button not performing any shortcut task as before like showing the desktop screen (this now happens when I click the Windows buttton + A key)

Thank you all

Happens alot with Android devs 😝😝.

It does't matters how much you try to make your code run, the moment you sleep some code fairy comes to do some code magic.