navigation bar moved to left

MBZ1_ After a required password update, I had this nav bar move happen to me. No option to turn off. Looks like they're trying to replicate the Outlook web app, which I hate and that's why I stuck with the desktop app. I notice now in the Task Manager that Outlook has a bunch of Edge subapps running too. It's even more laggy now, and clicking the new "More Apps" icon results in a script error that crashes the app. Thanks MS!

Microsoft is controlled by the Deep State.  Most every change they make that doesn't provide a user choice is all part of the Deep State's plan to control the masses.  They make little changes like this to condition users to the fact that Microsoft is in control.  It's working.  Today's youth swallow hook, line and sinker all the crap they see on social media.  When my generation dies off, the Deep State will have won the war without ever firing a shot. The only problem is that there will be no one left to carry the water. leMBZ1_ 

this should be optional, not forced. It is such a waste of space for a few icons on the upper left side which leads to less space for e.g. email content, calendar on the right side if the own view is set to that ... MBZ1_ 

NOTE: Do be cautious making any edits to your registry! Errors can make your computer need to be reset, cause data loss or become unusable!!!

MBZ1_ 

Solved!
The registry editor does resolve this issue.

For those who do not know how to do this, here are the steps:

1. Step one: It is very important that a registry backup be made and only desired changes be made to the registry.
   • If you are unsure how to do a backup, search online how to do this (I use Google).
2. Step two: close Outlook:
   • Note: Ensure all important emails/drafts are saved before closing Outlook.
   • Hold the "Ctrl+Alt+Delete" keys and select "Task Manager". Then, in the pop-up box select Microsoft Outlook and click on "End Task".
3. Step three: in your Windows Operating System (OS) taskbar search box type "Registry Editor".
4. Step four: Click on the Registry Editor (App) icon to open.
5. Step five: in the left column of the Registry Editor window, you should see a folder hierarchy. You will need to click through the folders to find the correct one (which will open on the right). Follow this folder path:
   •  HKEY_CURRENT_USER > Software > Microsoft > Office > 16.0 > Common > ExperimentEcs > Overrides
     • How to navigate through folders: Each ">" symbol above represents a transition into a sub-folder. Each sub-folder can be navigated to by double-clicking the folder icon or single-clicking the ">" expand icon.
6. Step six: When you have navigated to the "Overrides" folder, look in the right-hand column to determine whether there is a key called: "Microsoft.Office.Outlook.Hub.HubBar".
   • If yes: then right click on the key, select "Modify...", In the "Value Data:" field, replace whatever is there with the single word "false" (do not include quotes).
     • Note: You may want to remember the exact value that was there in case you ever want to revert this.
   • If no: If the "Microsoft.Office.Outlook.Hub.HubBar" key does not exist in this folder, you can easily create it by right-clicking on an empty space in the right-hand column, hovering over "New  > " in the pop-up selector, and clicking on "String Value". Then, simply type or copy and paste: "Microsoft.Office.Outlook.Hub.HubBar" into the key naming box (without quotes).
     • To save your new key: click any blank area in the right side of the Registry Editor and outside the key naming box.
     • After you have created the new key, right click on the key and select "Modify...". In the "Value Data:" field, replace whatever is there with the single word "false" (do not include quotes).
7. Step seven: close the Registry Editor application by clicking the "X" in the top-right corner.
8. Step eight: This is the fun part! Restart Outlook with no pesky left-sidebar navigation pane!!!
9. Step nine: share this solution with someone who needs help! 🙂

NOTE: Do be cautious making any edits to your registry! Errors can make your computer need to be reset, cause data loss or become unusable!!!

MBZ1_ I went to what's new and typed in navigation pane (I didn't even know what it was prior to "ahem" Googling it. here's what was displayed:

For a brief moment, I thought I would have some success, but, ta da:

Reading Pane is the only option

WHY?

MBZ1_ 

I scrolled to the end of all the comments to see when this started happening to others, it happened today. Very annoying!. My laptop updated last night, this is what I get? First, I couldn't find it and didn't even look on the left. Then I thought I somehow dragged it there. I've burned up an hour trying to get it to where I am used to it.

At least they could have the courtesy to tell you  they moved it. Do they think Outlook is like the supermarket where they move the inventory around to different aisle? One day you're in and out in 3 minutes with your blueberry pop tarts, the next day you're standing in the breakfast cereal aisle wondering where the ketchup and mustard went. Ugg.

MBZ1_ 

As a further indication that this UI design is the future, a preview video of Windows 11 22H2 show the Task Manager tabs have moved from the top to the left.

I, for one, welcome our new insect overlords.