Configuring preferences and options in Outlook.com
After many emails between the moderators and me, the sidebar was finally removed from my email. I had posted my complaint on different forums hoping that someone would finally help me.
I have a paid account (Hotmail Plus) and didn't think I should have to put up with the sidebar, since it is a way of advertising.
A moderator asked me to privately send a "screen shot" of what I saw on my computer screen. It took a while to figure out how to do this, but I did it.
About a week later, my sidebar disappeared! Yippee!!
In the meantime, before my sidebar was removed, I figured out that I could double click on the message in my inbox preview pane and get a full screen. However, it just took more time to do this. Or, I clicked on the little arrow pointing left at the top of the email message and that worked too.
Hopefully, Microsoft will see the error of their ways and remove this sidebar for everyone, or people will vote with their clicks and get rid of the new Outlook.