I already trying to remove Bitdefender with WPU and more uninstaller tools, but so sad that Bitdefender return after the device restarting.So ,i' re-solved in a good tip 100% remove Bitdefender: I have installed Android Os ( Phoenix OS ,or Remix OS...), login to this and select Bitdefender Folder in Program files ,now deleted Bitdefender folder. After that , i'm restarting my device in Windows 10 and Bitdefender are gone forever.It's true 100%,i promise.