Hello Tom Klima.
Thanks for sharing the details, Tom — let’s simplify this.
Disk Management is only showing the partitions on your computer. If you see Windows 10 listed on the E: drive, it just means there’s a Windows installation stored there. It doesn’t affect the system you’re currently running unless you boot from that drive, so it’s nothing to worry about.
As for email, Outlook is simply one program to access it. Your sbcglobal.net address exists independently of Outlook — you can use it through a web browser or add it to the built‑in Windows Mail app.
Let me know how it goes, and if this answer helps, feel free to hit “Accept Answer” so others can benefit too 😊
Domic.