For some minutes My battery percentage was 100% but when i restarted my phone, my battery percentage was draining soo fast please say me a solution asap pleaseHELP ME!!!!

Hellow samsung I was Using my Note 8 like 1 year now soo then It is a bit laging and get stuck while opening a app or any other etc... soo i tried factory reseting soo what can i do for this please Give me a Solution To fix. (Thank You)

Hellow Samsung why is this multi window not showing and connot enable it

hellow samsung i have a note 8 soo when i connect my original charger to my phone it says this(Slow charging)soo what can i do please i need my samsung give me a solution for this quick please

how to take *SETTINGS* IN *SECURE FOLDER*?