I'd like to recommend creating a account so me or other members can assist you, as guest have limitations in replying here and if we need further Information to communicate with you.
I'll provide a link to register, please come back to your post so we can further assist you . Thank you
If you really mean Finder, that's a Mac program. If you mean the launcher (the app that gives you your home page and app drawer) on an Android phone, you'll probably have to install a different launcher.
As B. Diddy asked, which phone? (And as mustang said, register so you can post the answer here. Guests can't post to existing threads.)