default search provider changing host names and cant remove the tick

I have been trying to remove a default search prover and even disabled it pops up as my internet search provider.it hid with yahoo for a bit and when I removed all yahoo it went to open office.ive tried advanced settings and add on tools but it wont remove.

Clear browsers with AdwCleaner http://www.bleepingcomputer.com/download/adwcleaner/

Then scan with Malwarebytes and remove evrything it find https://forum.avast.com/index.php?topic=53253.0

Post logs hereā€¦