Safari is being directed to Yahoo despite the search engine is google!

Hi Guys,

this problem has been bothering me and it is annoying!!

My safari is automatically directed to yahoo despite the search engine is set at google!

There is no extensions (deleted it), it worked for a short while after I deleted the extensions.

Used Bitdefender to search any malware, deleted the only two malware but the problem is still there!

Tried Finder > Go > Go finder to find but nothing was found!!

System preferences checked, cleared caches. But the problem is still there :(

Please help me.