SO FAR, SO GOOD
I purchased a Windows 10 Pro Product key using the email delivery method and ended up paying 1/10 the cost quoted on the MS website. Too good to be truth right? I was sceptical in that regard myself and I was pretty much mentally prepared to be robbed. After the installation of Windows 10 Pro downloaded from the Microsoft website, I was faced with the moment of truth ( I am making it sound dramatic because I ended up deleting the partition which hosted the Ubuntu factory installation, hence being on a boat to nowhere if this wouldn't have worked). Anyhow, after the installation and entering the activation key all went well and the Windows was activated without any issue. I would recommend using this website for Product Key procurement.