WHY DOES THIS RANDOM VOLUME BAR KEEPS POPPING UP ON MY SCREEN. WHAT IS THIS AND HOW TO FIX THIS

I've been trying to fix this but I've nevrr seen this before and it's defo not a default windows thing. I recently got my laptop back after it's hard disk got faulty and got a new ssd and since then this keeps popping up. I uninstalled all the useless other softwares too and there's literally no software that i can think of that's causing this. I REALLY NEED HELP😭

I've been trying to fix this but I've nevrr seen this before and it's defo not a default windows thing. I recently got my laptop back after it's hard disk got faulty and got a new ssd and since then this keeps popping up. I uninstalled all the useless other softwares too and there's literally no software that i can think of that's causing this. I REALLY NEED HELP😭