This is a recent annoyance (past year or so), and nobody, including Microsoft, seems to have any sort of fix. I'm running Windows 8.1 Pro. This popup does not seem to show up in Windows 10.
I just do not want to click thru this window when getting my mail!
How to get rid of the “organize your world” popup when I launch Outlook.com mail
outlook.com
Best Answer
The screen you are seeing is controlled by a Manifest stored on Microsoft's servers. You cannot specifically control it per se.
There is a work-around though, which for now works; however if Microsoft change their manifest again, then this work-around may cease to work.
Simply, right-click on empty spot of Desktop and select New > Shortcut
In the type the location of the item field enter: https://outlook.live.com/owa/?nlp=1 then click Next
In the Type a name for this shortcut enter whatever you like, then click Finish
This shortcut will open in your default web browser and take you directly to your webmail.
If you have more than one browser, you can also just type or paste: https://outlook.live.com/owa/?nlp=1 into its address bar then press Enter