Home button suddenly opens google now

Are you using the stock launcher or are you using Nova or Apex or something? There are ways to make the home button open google search with these launhcers.

If stock, are you sure you aren't holding the button? Holding the button opens google. Tapping it once should not.
 
Didn't the home button always open Google now if you pressed it long enough? Mine always has.

Posted via Android Central App
 
Didn't the home button always open Google now if you pressed it long enough? Mine always has.

Posted via Android Central App

Yes, the home key always launches 'Google Now' for me, as you said, with a long press.
(T-Mobile Carrier)
 
You might have to actually deactivate Google Now if you don't want it running your phone. Also, it's easy to activate it by mistake, so that might be what happened to you.
 
This is off subject but my keyboard has a block on it and idk how to remove it. Im stumped.
 
Seems like the right side of home but with stock launcher. I'll try a reboot

My phone us doing the same thing. A quick tap of the home button will open up Google most of the time and if I press on the right side of the button it seems worse. Did you find out how to fix it?
 
I think I've got it. Next time it pops up, go to settings-phone search-and unclick all the buttons. Worked so far for me when nothing else did.
 
Mine does it too. This is a new thing. It doesn't matey how long I press the button it keeps going to Google. It takes 5 or 6 tries to get back to the home screen. I unloaded the updates to Google Now, but that didn't seem to help.