Windows 10’s Redstone 5 update adds tabs to nearly every application on your system. You can remove these tabs from any application you like, giving those applications a traditional windows title bar once again.
This new tab feature is named “Sets,” and you can’t completely disable it for every application on your system at the moment. Microsoft only lets you disable it for specific applications—but you can disable it for as many applications as you lie.
The Redstone 5 update is currently available in Insider Preview form. It will be released sometime in Fall 2018 and will be named something else—probably the “October 2018 Update” or “November 2018 Update.”
To configure the tabs, head to Settings > System > Multitasking.
Scroll down to the “Sets” section, and then click the “Add an app” button.
You’ll find other options for configuring Sets here, including controlling whether tabs appear alongside windows when you press Alt+Tab.
Scroll through the list for the name of the application from which you want to remove tabs, select it, and then click the “OK” button.
This list shows universal applications like Mail, built-in Windows applications like File Explorer, and any desktop applications you’ve installed yourself.
Repeat this process to remove tabs from as many applications as you like. There’s nothing stopping you from removing Sets tabs from every application you use, if you don’t like it.
To remove an app from this list and restore tabs to that app, click the app in the list, and then click the “Remove” button.
Any applications you add to this list will now have a classic title bar instead of the new tabbed title bar.
If this change doesn’t occur immediately, minimize the application’s window and restore it. If that doesn’t work, you’ll need to restart the application.