How to remove Google box from home screen I believe this app is called S Voice. How can I remove it completely?



Sometimes it pops up when I unlock the tablet without me trying to open it. And even if it didn't I would want to remove it anyway because I don't need the functionality it provides (I don't even know what it is.)
That's Google app (formerly known as Google Search).


  Google app for Android: The fastest, easiest way to find what you need on the web and on your device.
  
  
  Quickly search the web and your phone or tablet
  Use your voice to search and more
  Get personalised results based on your location
  
  
  


(Click image to enlarge; image modified but originally taken from Play Store)

As for how to disable it, see How to disable Google Search? -- usually, it is Settings &rarr; Apps &rarr; All apps&rarr; Google (or Google Search) &rarr; Disable.

While I was able to disable this app in my CyanogenOS 12, there is an answer here which contradicts with my statement. Perhaps, it is still valid for some specific scenarios. I recommend a look at it. 

To remove it, see Rooted Phone but still can&#39;t uninstall Apps.

Also consider https://android.stackexchange.com/questions/86475/nexus-5-stuck-in-boot-loop-after-disabling-google-search.