How can I keep two desktop windows visible without constantly resizing them?
Quick answer
Use your desktop’s built-in window arrangement. On Windows 10 or 11, press the Windows key and a left or right arrow to snap the active window, then choose another open window to fill the space. Windows 11 may offer Snap Groups to return to an arranged group. On a Mac, use the green window control to start Split View and choose a second app. Don’t assume every previous layout is automatically saved.
The question, the details, the next step.
I keep dragging and resizing two windows to compare things. What’s the quickest built-in way to keep both visible?
Use your operating system’s window-arrangement feature. On Windows 10 or 11, make the first window active and press the Windows key plus the Left or Right arrow. The window snaps to that side, and Snap Assist can offer other open windows to fill the remaining space. [S1]
On a Mac, use the green window control to start Split View, choose which side the first app should occupy, and select another window for the other side. [S2] Both approaches arrange the windows without requiring you to size each one by hand.
I’m on Windows. What’s a simple setup, and what if I want something other than two equal sides?
Try this sequence:
- Open both apps and bring the first window forward.
- Press Windows key + Left arrow or Windows key + Right arrow.
- Select the other open window when Snap Assist offers it. [S1]
For more arrangement choices, Windows 11 offers Snap layouts. The layouts available can depend on display size, so the same choices may not appear on every screen. You can review Snap options under Settings > System > Multitasking. [S1]
For example, open a notes app and a reference window, snap one to a side, and select the other to fill the remaining space. Check that the text you need is readable; if it isn’t, try another available layout or simplify what you keep open.
If I switch away and come back, can I restore that same two-window layout?
On Windows 11, Snap Groups can provide a way to return to a group of arranged apps from an app on the taskbar. [S1] That is not a universal restore command for every previous layout: the feature does not promise to recover a layout that was not retained as a group. [S1]
When you return, look for the group through the taskbar. If it is not available, repeat the snap steps. Windows 10 supports snapping, but the cited guidance describes Snap Groups as a Windows 11 feature. [S1]
I use a Mac. How do I set up the pair, and what if I need to find a window later?
Use the green window control on the first app to start Split View, choose its side, and then select the second app for the other half. [S2] The available options can depend on the macOS features and settings in use. [S2]
Mission Control is another built-in way to view open windows together and work with windows and spaces. [S2] It can help you locate an open window, but the cited guidance does not establish that macOS automatically saves and restores a particular previous two-app layout. So, if you need the same pair later, be prepared to arrange it again.
A practical checklist
Open both apps before arranging them.
On Windows, snap one window with Windows key + Left or Right; on Mac, start Split View from the green window control.
Choose the second app to fill the other side.
Check that both windows are readable in the selected layout.
On Windows 11, look for a Snap Group if you want to return to an arrangement; otherwise, be ready to set it up again.
A few more useful answers
Does every Windows computer show the same Snap layouts?
No. The available layouts can depend on display size. Review Snap options under Settings > System > Multitasking. [S1]
Is there a command that always restores my last two-window layout?
The cited Windows guidance describes Snap Groups in Windows 11 as a way to return to an arranged group from a taskbar app. It does not establish a universal command to restore any previous unsaved layout. [S1]
Can I use Mission Control instead of Split View on a Mac?
Yes. Mission Control can show open windows together and can be used to arrange windows and spaces. Available options depend on macOS features and settings. [S2]
Sources
References used for this guide.
- [S1] Snap Your Windows support.microsoft.com · Checked
- [S2] Manage windows on your Mac support.apple.com · Checked