w10 reinstall

this is my first time any any forum i hope im doing it right. i have a 4month old dell inspiron 15 5555. it is running w10 home. i have a sony wireless head phones and the souund quality is equal to sitting inside a tin can. no luck from dell nor sony how to fix. so i bought windows 10 pro which now includes a usb stick which i presume has the full operating system. i tried installing it and of course it doesnt work i research google and dell to see how to completely format the hard drive and get rid of all the dell bloatware and formatted each volumn as well as deleted each volumn and tried to do a new reinstall again all that loads is the home addition. i called dell they said they would help me but i would have to pay them $240.00 for softeare support. can anyone pls pls help me.

Here is a guide on how to do a clean install.

https://www.tenforums.com/tutorials/1...n-install.html

Here's how to upgrade Home to Pro :

https://support.microsoft.com/en-us/...ng-home-to-pro

It is installing Home version because it is reading the Home product key stored in your computer's firmware.