How to Open Multiple PowerPoint Files in Separate Windows

When you double-click a second PowerPoint file while one is already open, it typically opens in the same window as a new presentation, replacing the current view. This makes it difficult to compare slides side by side or drag content between two presentations. The default behavior in PowerPoint is to open all files inside a single application instance. This article explains how to open each PowerPoint file in its own separate window so you can work with multiple presentations at the same time.

Two main methods achieve this: changing a setting in PowerPoint options or using a Windows shortcut trick. Both methods are covered below step by step. After applying either method, each PowerPoint file will launch in its own independent window with its own ribbon and slide pane.

Why PowerPoint Opens Files in the Same Window by Default

PowerPoint is designed as a single-document interface application. When you open a second file, it loads inside the same program instance. This conserves system memory and keeps the ribbon and toolbars synchronized. However, this design prevents you from viewing two presentations side by side without manually arranging windows or using the View > Arrange All command, which still keeps them in one window.

The technical reason is that PowerPoint uses a shared application process. All open presentations share the same process ID. Changing the display option in the Advanced settings tells Windows to treat each presentation as an independent top-level window. This does not create a new process but does separate the windows on the taskbar and in the Alt+Tab switcher.

Method 1: Enable the Show All Windows in the Taskbar Setting

This is the recommended method for most users. It requires no additional software and works for all future PowerPoint sessions.

1. Open PowerPoint and go to File > Options
   Click the File tab in the upper-left corner of the ribbon. Select Options at the bottom of the left column. The PowerPoint Options dialog opens.
2. Navigate to the Advanced category
   In the left pane of the dialog, click Advanced. Scroll down to the Display section near the bottom of the list.
3. Enable the Show all windows in the Taskbar check box
   In the Display section, find the option labeled Show all windows in the Taskbar. Check the box. This tells PowerPoint to display each open presentation as a separate taskbar button.
4. Click OK and restart PowerPoint
   Click OK to save the setting. Close all open PowerPoint windows and launch the application again. Now each file you open will appear in its own window on the taskbar.

After enabling this option, you can drag slides between two presentations by opening both files, clicking the View tab, selecting Arrange All, and then dragging thumbnails from one slide pane to another. The two windows remain independent.

Method 2: Open a Second Instance of PowerPoint via the Taskbar

If you do not want to change the default setting permanently, you can open a second instance of PowerPoint on demand. This method works for a single session.

1. Right-click the PowerPoint icon on the taskbar
   If PowerPoint is already running, right-click its taskbar icon. If it is not running, launch one instance first.
2. Hold the Shift key and click PowerPoint
   While holding the Shift key, left-click the PowerPoint item in the context menu. A new blank presentation window opens. This is a separate instance of the application.
3. Open your second file from the new instance
   In the new blank window, go to File > Open and select the second presentation. The file opens in this second instance, completely independent from the first window.

You can repeat this process to open three, four, or more separate instances. Each instance has its own ribbon, undo stack, and clipboard. Note that this method does not persist after you close PowerPoint. Next time you launch the application, you must repeat the Shift-click procedure.

Common Mistakes and Limitations When Opening Multiple Windows

Drag and drop does not work between instances

When you use the second-instance method, you cannot drag a slide thumbnail from one window to the other. The two instances do not share the same clipboard format for slide objects. Instead, use the traditional copy and paste method: right-click the slide thumbnail in the source presentation, select Copy, switch to the target window, right-click the destination area, and select Paste.

Show all windows in the Taskbar affects all Office apps

The Show all windows in the Taskbar option is available in Word and Excel as well. Enabling it in PowerPoint does not change the behavior of the other Office applications. Each app has its own Advanced settings dialog. You must enable the option separately in Word and Excel if you want the same behavior there.

Macros and add-ins may behave differently in separate instances

Some PowerPoint add-ins and VBA macros assume a single application instance. If you open multiple instances, the add-in may load only in the first instance. To ensure all instances have the same functionality, install the add-in globally or verify that the add-in supports multiple instances.

Performance impact with many open instances

Each separate instance consumes additional memory and CPU resources. Opening more than five or six instances on a system with 8 GB of RAM may cause sluggish performance. Use the Show all windows in the Taskbar method instead, which keeps a single process and uses less memory overall.

PowerPoint Single Instance vs Multiple Instances: Key Differences

Item	Single Instance (Default)	Multiple Instances (Separate Windows)
Taskbar behavior	One taskbar button for all open files	One taskbar button per open file
Memory usage	Lower, all files share one process	Higher, each file has its own process
Drag-and-drop slides	Works between files in the same instance	Does not work; use copy and paste instead
Undo stack	Shared across all files	Independent per file
Add-in compatibility	Add-in loads once for all files	Add-in may need to load per instance

After enabling the Show all windows in the Taskbar setting or using the Shift-click method, you can open multiple PowerPoint files in separate windows. Use the Taskbar setting for daily work and the Shift-click method for occasional multi-file sessions. To quickly switch between windows, press Alt+Tab and select the presentation you want. If you frequently compare two presentations side by side, enable the Show all windows in the Taskbar option and then use View > Arrange All to tile both windows on the screen.